Monday, September 20, 2010

Perfecting Keyword Targeting & On-Page Optimization


How Do I Build the Perfectly Optimized Page?

If you're in SEO, you probably hear this question a lot. Sadly, there's no cut and dry answer, but there are sets of best practices we can draw from and sharpen to help get close. In this blog post, I'm going to share our top recommendations for achieving on-page, keyword-targeting "perfection," or, at least, close to it. Some of these are backed by data points, correlation studies and extensive testing while others are simply gut-feelings based on experience. As with all things SEO, we recommend constant testing and refinement, though this knowledge can help you kick-start the process.

HTML Head Tags


  • Title - the most important of on-page keyword elements, the page title should preferably employ the keyword term/phrase as the first word(s). In our correlation data studies, the following graph emerged:


  • Clearly, using the keyword term/phrase as the very first words in the page title has the highest correlation with high rankings, and subsequent positions correlate nearly flawlessly to lower rankings.
  • Meta Description - although not used for "rankings" by any of the major engines, the meta description is an important place to use the target term/phrase due to the "bolding" that occurs in the visual snippet of the search results. Usage has also been shown to help boost click-through rate, thus increasing the traffic derived from any ranking position.
  • Meta Keywords - Yahoo! is unique among the search engines in recording and utilizing the meta keyword tag for discovery, though not technically for rankings. However, with Microsoft's Bing set to take over Yahoo! Search, the last remaining reason to employ the tag is now gone. That, combined with the danger of using keywords there for competitive research means that at SEOmoz, we never recommend employing the tag.
  • Meta Robots - although not necessary, this tag should be sure NOT to contain any directives that could potentially disallow access by the engines.
  • Rel="Canonical" - the larger and more complex a site (and the larger/more complex the organization working on it), the more we advise employing the canonical URL tag to prevent any potential duplicates or unintentional, appended URL strings from creating a problem for the engines and splitting up potential link juice.
  • Other Meta Tags - meta tags like those offered by the DCMI or FGDC seem compelling, but currently provide no benefit for SEO with the major engines and thus, add unnecessary complexity and download time.

URL

  • Length - Shorter URLs appear to perform better in the search results and are more likely to be copied/pasted by other sites, shared and linked-to.
  • Keyword Location - The closer the targeted keyword(s) are to the domain name, the better. Thus, site.com/keyword outperforms site.com/folder/subfolder/keyword and is the most recommended method of optimization (though this is certainly not a massive rankings benefit)
  • Subdomains vs. Pages - As we've talked about previously on the blog, despite the slight URL benefit that subdomains keyword usage has over subfolders or pages, the engines' link popularity assignment algorithms tilt the balance in favor of subfolders/pages rather than subdomains.
  • Word Separators - Hyphens are still the king of keyword separators in URLs, and despite promises that underscores will be given equal credit, the inconsistency with other methods make the hyphen a clear choice. NOTE: This should not apply to root domain names, where separating words with hyphens is almost never recommended (e.g. pinkgrapefruit.com is a far better choice than pink-grapefruit.com).

Body Tags

  • Number of Keyword Repetitions - It's impossible to pinpoint the exact, optimal number of times to employ a keyword term/phrase on the page, but this simple rule has served us well for a long time - "2-3X on short pages, 4-6X on longer ones and never more than makes sense in the context of the copy." The added benefit of another instance of a term is so miniscule that it seems unwise to ever be aggressive with this metric.
  • Keyword Density - A complete myth as an algorithmic component, keyword densitynonetheless pervades even very sharp SEO minds. While it's true that more usage of a keyword term/phrase can potentially improve targeting/ranking, there's no doubt that keyword density has never been the formula by which this relevance was measured.
  • Keyword Usage Variations - Long suspected to influence search engine rankings (though never studied in a depth of detail that's convincing to me), the theory that varied keyword usage throughout a page can help with content optimization and optimization nevertheless is worth a small amount of effort. We recommend employing at least one or two variations of a term and potentially splitting up keyword phrases and using them in body copy as well or instead.
  • H1 Headline - The H1 tag has long been thought to have great importance in on-page optimization. Recent correlation data from our studies, however, has shown that it has a very low correlation with high rankings (close to zero, in fact). While this is compelling evidence, correlation is not causation and for semantic and SEO reasons, we still advise proper use of the H1 tag as the headline of the page and, preferrably, employment of the targeted keyword term/phrase.
  • H2/H3/H4/Hx - Even lower in importance than the H1, our recommendation is to apply only if required. These tags appears to carry little to no SEO value.
  • Alt Attribute - Surprisingly, the alt attribute, long thought to carry little SEO weight, was shown to have quite a robust correlation with high rankings in our studies. Thus, we strongly advise the use of a graphic image/photo/illustration on important keyword-targeted pages with the term/phrase employed in the alt attribute of the img tag.
  • Image Filename - Since image traffic can be a substantive source of visits and image filenames appear to be valuable for this as well as natural web search, we suggest using the keyword term/phrase as the name of the image file employed on the page.
  • Bold/Strong - Using a keyword in bold/strong appears to carry a very, very tiny amount of SEO weight, and thus it's suggested as a best practice to use the targeted term/phrase at least once in bold, though a very minor one.
  • Italtic/Emphasized - Surprisingly, italic/emphasized text appears to have a similar to slightly higher correlation with high rankings than bold/strong and thus, we suggest its use on the targeted keyword term/phrase in the text.
  • Internal Link Anchors - No testing has yet found that internal anchors are picked up/counted by the engines.
  • HTML Comments - As above, it appears the engines ignore text in comments.

Internal Links & Location in Site Architecture

  • Click-Depth - Our general recommendation is that the more competitive and challenging a keyword term/phrase is to rank for, the higher it should be in a site's internal architecture (and thus, the fewer clicks from the home page it should take to reach that URL).
  • Number/Percentage of Internal Links - More linked-to pages tend to higher rankings and thus, for competitive terms, it may help to link to these pages from a greater number/percentage of pages on a site.
  • Links in Content vs. Permanent Navigation - It appears that Google and the other engines are doing more to recognize location on the page as an element of link consideration. Thus, employing links to pages in the Wikipedia-style (in the body content of a piece) rather than in permanent navigation may potentially provide some benefit. Don't forget, however, that Googleonly counts the first link to a page that they see in the HTML
  • Link Location in Sidebars & Footers - Recent patent applications, search papers and experience from inside SEOmoz and many practitioners externally suggests that Google may be strongly discounting links placed in the footer, and, to a lesser degree, in the sidebar(s) of pages. Thus, if you're employing a link in permanent navigation, it may pay to use the top navigation (above the content) for SEO purposes.

Page Architecture

  • Keyword Location - We advise that important keywords should, preferably, be featured in the first few words (50-100, but hopefully even sooner) of a page's text content. The engines do appear to have some preference for pages that employ keywords sooner, rather than later, in the text.
  • Content Structure - Some practitioners swear by the use of particular content formats (introduction, body, examples, conclusion OR the journalistic style of narrative, data, conclusion, parable) for SEO, but we haven't seen any formal data suggesting these are valuable for higher rankings and thus feel that whatever works best for the content and the visitors is likely ideal.

Why Don't We Always Obey These Rules?

That answer is relatively easy. The truth is that in the process of producing great web content, we sometimes forget, sometimes ignore and sometimes intentionally disobey the best practices laid out above. On-page optimization, while certainly important, is only one piece of a larger rankings puzzle:
(FYI - The new ranking factors survey data is set to release very, very soon)
It most certainly pays to get the on-page, keyword-targeting pieces right, but on-page SEO, in my opinion, follows the 80/20 rule very closely. If you get the top 20% of the most important pieces (titles, URLs, internal links) from the list above right, you'll get 80% (maybe more) of the value possible in the on-page equation.

Best Practices for Ranking #1

Curiously, though perhaps not entirely surprisingly to experienced SEOs, the truth is that on-page optimization doesn't necessarily rank first in the quest for top rankings. In fact, a list that walks through the process of actually getting that first position would look something more like:
  1. Accessibility - content engines can't see or access cannot even be indexed; thus crawl-ability is foremost on this list.
  2. Content - you need to have compelling, high quality material that not only attracts interest, but compels visitors to share the information. Virality of content is possibly the most important/valuable factor in the ranking equation because it will produce the highest link conversion rate (the ratio of those who visit to those who link after viewing).
  3. Basic On-Page Elements - getting the keyword targeting right in the most important elements (titles, URLs, internal links) provides a big boost in the potential ability of a page to perform well.
  4. User Experience - the usability, user interface and overall experience provided by a website strongly influences the links and citations it earns as well as the conversion rate and browse rate of the traffic that visits.
  5. Marketing - I like to say that "great content is no substitute for great marketing." A terrific marketing machine or powerful campaign has the power to attract far more links than content may "deserve," and though this might seem unfair, it's a principle on which all of capitalism has functioned for the last few hundred years. Spreading the word is often just as important (or more so) than being right, being honest or being valuable (just look at the political spectrum).
  6. Advanced/Thorough On-Page Optimization - applying all of the above with careful attention to detail certainly isn't useless, but it is, for better or worse, at the bottom of this list for a reason; in our experience, it doesn't add as much value as the other techniques described.
As always, I'm looking forward to hearing your thoughts and experiences about the specific recommendations above and the general concept of the "perfectly" optimized page.

On Page SEO Basics

On page SEO or search engine optimisation is making sure that your website is as search engine friendly as possible. If your website is not optimised then you have less chance of getting good results in the search engines, here is a quick guide towards good on page SEO:
  • Make sure that all of your web pages can be indexed by search engines - make sure that they all have at least one link from somewhere on your site.
  • Make sure that you have unique content on every single page.
  • Make sure that your meta-tags are arranged correctly - your page title tags and description tags should describe the content of your different web pages. The page title tags should be less then 68 characters and the description tags more detailed but less then 148 characters.
  • Make sure you label the different headers on your web pages using H tags.
  • Make sure that your web page URLs are SEO friendly, use mod re-write for Linux and Apahche hosting or use IIS redirect for Windows. Ideally make it so that the URLs describe your content i.e. use domain.com/blue-widgets.php as apposed to having something like domain.com/product.php?cat=146. Use hyphens or underscores to separate words in the URLs.
  • Make sure that the links within your site are complete i.e. if you are linking to the blue widgets page link to domain.com/blue-widgets.php as apposed to just blue-widgets.php.
  • Make sure that you use descriptive URLs for your images i.e. use blue-widget.jpg as apposed a bunch of numbers and or letters .jpg.
  • Make sure that you label all of your images with descriptive alt attributes.
  • Make sure that you make good use of anchor text links within your content - if you have a page about blue widgets, use the phrase blue widgets in the text that links to it.
  • Make sure that there is only one version of your site - 301 redirect all non www. URLs to the www. ones or vice versa.
  • Make sure that there is only one version of your homepage - 301 redirect the index or default page back to domain.com.
  • Use the rel="nofollow" tag in the links to websites that you do not trust, you think maybe using spamming techniques or you do not want to help in the search engines.
  • Make sure that your code is valid, in some instances bad code can lead to search engines not being able to properly read a page. Use the W3C validator to check your markup.
If you follow these guidelines you are on your way towards good on page SEO and to good rankings in the search engines.

Monday, September 13, 2010

125 Social Bookmarking Sites : Importance of User Generated Tags, Votes and Links


The positive effects of social bookmarking for publishers of news sites, blogs and other web sites is outstanding. Social bookmarking can introduce the sites that you own or you like to others with relevant tastes, can drive traffic to your site, and valuable backlinks.
Some social bookmark sites like Propeller.com pass on link juice, while some use the NoFollow attribute. But do not let the use of NoFollow fool you, the search engines are looking beyond the incoming links from social bookmarking sites to gauge their value to their search indexes. The external metadata compiled via user generated descriptions, tags, titles and categorization is incredibly valued by the search engines, as in the same philosophy as anchored backlinks, descriptive content about a web site defined by the users of that site who are not associated with the marketing or coding of that site, can be extremely powerful in gauging the importance and relevance of the content and tags which are used on that site.
Bookmarks show how a site is perceived, and when these sites allow voting, they also show the engines or whatever classification system which monitors voting, how people feel about the quality of the site. Furthermore, social bookmarking can introduce a site to the search engines, as in some cases, people may find and bookmark a site or a site’s internal pages before a search engine can find those pages via another form of inbound link.
Monitoring social bookmarking services like Del.icio.usStumbleUpon and Ma.gnolia can help search engines in multiple ways by:
  • Indexing Sites Faster : Humans bookmark sites launched by their friends or colleagues before a search engine bot can find them.
  • Deeper Indexing : Many pages bookmarked are deep into sites and sometimes not as easily linked to by others, found via bad or nonexistent site navigation or linked to from external pages.
  • Measuring Quality : Essentially if more users bookmark a page, the more quality and relevance that site has. A site with multiple bookmarks across multiple bookmarking services by multiple users is much more of an authority than a site with only several bookmarks by the same user.
  • External Meta Data : Users who bookmark sites tag them with keywords and descriptions which add an honest and unbiased definition which is created by the public and not the owner of the site.
  • Co Citation : Social bookmarking sites tend to categorize sites and pages based upon the tags used by humans to describe the site; therefore search algortihms can classify these sites with their peers.
  • Number of Votes : Similar to the number of bookmarks, the more votes a page receives on Digg or Reddit, the more useful that information usually is. If the same page receives multiple votes across multiple social news voting sites, the higher quality the site.
  • Categorization : Like Co Citation, categorization can help define the subject of a site, therefore better helping the engine address searcher intent.
To help share the wealth of social bookmarking, I’ve put together a list of 125 social bookmarking sites, some of which are very popular and others which are newer or somewhat unheard of. But besides targeting the major social bookmarking and tagging sites which are listed above, you will find some diamonds in the rough which are niche oriented or treated well by Google and other search engines. I’ve found that one such surprise is Searchles which is regarded as an authority by multiple search engines and bookmarks within Searchles sometimes show up quite high in some branded organic results.

125+ Social Bookmarking/News Sites You Should Consider

  1. Backflip : Backflip is a free service currently being run by volunteers. Backflip was started in 1999 by Netscape veterans Tim Hickman and Chris Misner. As a research tool, Backflip is clearly of value to the education community, and that community (or at least certain segments) has certainly embraced Backflip. A Google search of sites that contain the term “Backflip.com” results in numerous education-related links, including Teacher Tools.
  2. barksbookmarks : BARKS=BookmARKS is a website that combines social bookmarking, blogging, RSS, and non-hierarchical editorial control.
  3. BibSonomy :BibSonomy is run by the Knowledge Data Engineering Group of the University of Kassel, Germany. Its specifically designed for researchers, in sharing bookmarks and bibliographies
  4. Blinklist :A social bookmarking site launched by Mindvalley. According to their site, they launch several web businesses a year and are focused in 3 areas. – Technology, media and Marketing. BlinkList does have a user friendly interface indicating that its being run well and efficiently. They also quote “fully profitable” on their site. Furthermore, you can label and comment about any web page on the Internet.
  5. Blipoo :Meet Blipoo, a social bookmarking site for “cool” people sharing “cool” stories. It claims to help bloggers drive more traffic to their blog because they allow self promotion..
  6. BlogBookMark : Designed specifically for Blog hunters, BlogBookmark.com claims to have the hottest news, gossip, and blog chatter from around the web. I highly sugggest that mainstream bloggers bookmark their entires here.
  7. BlueDot : This basic social networking service allows users to save and share bookmarks.
  8. blurpalicious : Get Blurped! Not too different from other social bookmarks, but I love the tagline.
  9. Bmaccess : Social bookmarking with thumbs :)
  10. Bookkit : BookKit.com is an absolutely free web service designed to facilitate bookmark (favorites) management needs.
  11. BookMarkAll : Bookmarkall is an online bookmark community where users can create, organize and share their favorite web links online and access them anywhere.
  12. Bookmark-manager : Organizer for bookmarks, calendar, diary and knowledge.
  13. bookmarktracker : Free online storage, management, synchronizing and RSS sharing of your bookmarks.
  14. Bookmax : You can store your bookmarks and links to your favorite sites online and access them from wherever you are : basic Social Bookmarking.
  15. Buddymarks : The online personal, group and social bookmarks manager.
  16. Bukmark : Bukmark is a social bookmarking website.
  17. Chipmark :Another basic social bookmarking site.
  18. Citeulike : A free service to help academics to share, store, and organise the academic papers they are reading.
  19. Claimid : Manage your online identity. Although this is not a normal social bookmarking site, users can bookmark sites which reference their identity and build backlinks in this fashion.
  20. Clipclip : Clipclip allows you to save images and text, with a “bookmarklet”.
  21. Cloudytags : A unique word analyzer connects to your page, gets all the words and suggest you the real tags your site is showing to the world.
  22. Complore : Derived from com-(with,together) and explore-(search, research). As the name suggests, complore is a vision to connect people from diverse backgrounds
  23. Connectedy : Lets you establish a personal link directory online. As you surf the web, you collect links, categorize them in a way that makes sense to you.
  24. Connotea : Social bookmarking (for researchers).
  25. Contentpop : It has the latest Web 2.0 features such as social bookmarking, blogging & RSS. It also uses the word POP in the title which means it must be good.
  26. coRank : coRank is a site where you can share whatever you find interesting on the web with people who value your opinion
  27. Crowdfound : CrowdFound is essentially a social bookmarking website, but with a different vision in mind
  28. de.lirio.us : Store, share and tag your favourite links. Open source clone of del.icio.us with private bookmarking, tagging, blogging, and notes
  29. del.icio.us : THE social bookmarking site : It allows you to easily add sites you like to your personal collection of links and to categorize those sites with keywords. Not to mention that if enough people save your site in a bookmark, it will make their popular page and send a lot of traffic. Delicious is owned by Yahoo and is a MUST for your social media and bookmarking strategy.
  30. Diigo : Social bookmarking on steroids.
  31. Digg : The social news site that changed the Internet, Digg is a high power authority and a listing in Digg for a site, even if it only has a couple of votes, will rank highly on Google and other search engines for certain terms. If your site is shared and voted upon on Digg, and makes the Digg homepage, you’ll get a lot of traffic and attention from other bloggers who read Digg.
  32. Dropjack : DropJack.com is a social content website and owned by the ExactSeek company.
  33. Easybm : Allows users to bookmark their frequently visited sites on their private page, allowing 1-click access to their favorite web sites.
  34. Enroll : Social bookmarking system based in India.
  35. ez4u : Social Bookmarking – Ez4u to Bookmark : “Ez4u to Organize Ez4u to Share with Others Ez4u to Remember”
  36. Favoor : Favoor is your personalized new start page. Collect your favorite internet addresses.
  37. Folkd : Folkd is a social web-service about pages, news, audios, videos and blogs.
  38. Freelink : Freelink.org provides free pages of links that you can access anywhere at anytime.
  39. Freezilla : FreeZilla claims to be the first Web 2.0 freebies and promotions social networking site.
  40. Fungow : Fungow was designed to help better organize and keep track of your bookmarks.
  41. Furl : Like Delicious, LookSmart’s Furl.net is one of the first social bookmarking sites and considered an authority by the major search engines. Listing your sites in Furl will lead to traffic from organic rankings and its popular page drives traffic.
  42. Gather : Gather is a place to contribute articles and content, blog, tag and connect with people who share your passions. (Plus you can link out from the articles in this authority site).
  43. Getboo : GetBoo.com is yet another free online bookmarking service which allows you to store, edit and retrieve your bookmarks from anywhere online.
  44. Google : Allows users to save and create bookmarks in their Google toolbar that can be accessed anywhere online. Google is getting more social by the day, so take advantage of their Google Bookamrks and citations, because one day they probably will have some kind of influence on external meta data considered by the Google ranking algortihm.
  45. Hanzoweb : Hanzoweb – Bookmark, tag & share knowledge online
  46. Hyperlinkomatic : Hyperlinkomatic – bookmark list manager.
  47. i89.us : i89.us offers a free service which allows you to save your favorite website/links at one location that can be accessed from anywhere.
  48. Icio : Danish Bookmarking engine.
  49. Ikeepbookmarks : Popup feature allows you to add links while surfing the web
  50. Iloggo : Simple web based bookmarking tool that you can use for attractively displaying your favorite websites on one page.
  51. Jigg : Jigg.in is a socializing community with the latest stories / news submitted by users and has a familiar name :)
  52. Kaboodle : Kaboodle is a 2.0 shopping community where people recommend and discover new things.
  53. Kinja : Kinja is a blog guide, collecting news and commentary from some of the best sites on the web.
  54. Lifelogger : “LifeLogger is a great way to keep things that matter to you alive and sparkling.” And worth considering in a bookmarking campaign.
  55. Lilsto : Lilisto lets you store, manage and find your favorite links (or bookmarks) and removes the need to maintain them through your browser.
  56. Linkagogo : Favorites and Social Bookmarking Application, its unique dynamic toolbars automatically adapt themselves.
  57. Linkarena : German Social Bookmarking site.
  58. Linksnarf : Social link sharing with groups of friends.
  59. Listerlister :ListerLister is a social list building community where you can create, add to, and vote for both lists and the items added to them.
  60. Ma.gnolia.com : Like Furl and Delicious, anoter major bookmarking site which lets users organize bookmarks, search other people’s favorites and make friends and contacts.
  61. Markaboo : MarkaBoo is tool for saving websites, files, and notes from your browser, email or mobile phone.
  62. Marktd : Marktd is a reference & voting system that highlights marketing articles considered valuable by the marketing community.
  63. Memfrag : memFrag stores your favorites personal notes, making them globally accessible from any computer.
  64. Memotoo :Lets users centralize and share your personal data.
  65. Mister Wong : Mister Wong is a social bookmarking site that originated in Germany, and has since become a popular and widespread tool.
  66. Mixx : An up and coming bookmarking and social news sharing network which should rival Digg, Reddit and others, Mixx blends popular photos, videos and stories.
  67. Mobleo : Allows you to easily add, organize, and share your mobile phone bookmarks with your friends using your desktop computer.
  68. Multiply :Florida-based social network Multiply, which reports nearly 3 million users and $6 million in funding,opened its social bookmarking site recently and has done well. Definite authority :)
  69. Murl : My URLs is a free online bookmarks manager, think of it as a bookmarks community.
  70. MyBookmarks : MyBookmarks – access your bookmarks anytime, anywhere. Free productivity tool for business, student or personal use. Another popular bookmarking site.
  71. Myhq : Store your bookmarks in one central location. Fast, text-based, banner free!
  72. MyLinkVault : A free online bookmark manager. Other bookmark managers can be so clumsy to use – trying to rearrange your bookmarks can be slow and frustrating.
  73. mySiteVote : mySiteVote is a community where you can vote your favorite site/s and view how popular a site is.
  74. MyWebDesktop : A collaboration and communication tool, designed to be as generic and easy to use as a telephone and email.
  75. Newsvine : The mission of Newsvine is to bring together big and little media in a way which respects established journalism
  76. Newsweight :NewsWeight is a democratic news, information, and entertainment resource.
  77. Oyax : Oyax is a social bookmark manager which allows users to easily add sites you like to personal collection of links, categorize those sites with keywords.
  78. Philoi : Person-to-person link sharing community. Save bookmarks and share links with your friends.
  79. PlugIM : PlugIM is a user driven internet marketing community. Submit content, share articles, comment on projects and promote your favorites to the front page
  80. Propeller : Formaly known as Netscape, AOL’s Propeller has become a great social bookmarking news community tool which is considered an ultimate authority by Yahoo Search and passes link juice in its news story profiles. Propeller is also going to redesign very soon, which should be quite exciting.
  81. QuickieClick : QuickieClick is a second generation social bookmarking website with a visual twist.
  82. Rambhai : An Indian social bookmarking community
  83. RawSugar : A social search engine powered by user contributions. Its an online community, with over 130,000 URLs already tagged by their members.
  84. Reddit : Timely and shocking news oriented, Reddit stories are instantly voted upon and if liked by the community as a whole, can drive incredible traffic and users.
  85. Searchles : Owned by the DumbFind search engine, in my opinion Searchles is a much overlooked bookmarking tool and loved by Google, Yahoo and the other major search engines with its passing of link juice and high rankings for terms within search results themselves. Do not overlook Searchles.
  86. Segnalo : Italian Social bookmarking site.
  87. Simpy [late addition]: Social bookmarking & search, Simpy lets users “save, tag, search and share bookmarks, notes, groups and more.”
  88. Sitebar : A solution for people who use multiple browsers or computers and want to have their bookmarks available from anywhere without need to synchronize them
  89. Sitejot :Free online bookmark manager. Like every other social bookmarking site, it allows users to manage all of their bookmarks online in one convenient place.
  90. Sk*rt : sk*rt is a social media ranking platform of “pure goodness”, targeted towards women. Given the right story, Sk*rt can send A LOT of targeted traffic.
  91. Slashdot : The godfather of social news, SlashDot bookmarks are still quite powerful .. keep in mind the site has a heavy slant towards Linux and Open Source issues.
  92. SocialDanger : SocialDanger is a Web 2.0 open source content management system.
  93. Socialogs : A Digg-like Social Bookmarking Service.
  94. Sphinn : Very popular search marketing oriented social news and discussion site run via the Pligg system.
  95. Spotback : Spotback is a personalized rating system that recommends relevant content based on personal rating history using collaborative filtering
  96. Spurl : Another cherished bookmarking and tagging site, Spurl lets users keep online bookmarks & tags while offering full text searching, recommendations & storing of entire documents.
  97. Squidoo :Kind of spammed out, Squidoo is a 2.0 property which lets people and businesses set up a ‘lens’ which lists links, tags and relevant RSS feeds to different subjects.
  98. Startaid : I’ve noticed that StartAid bookmark pages rank highly in Google and other search engines. This basic bookmarking service allows users to describe, tag and categorize sites.
  99. StumbleUpon : Owned by eBay, StumbleUpon is an amazing blend of social bookmarking, voting, networking, web surfing, search and blogging. Best of all, StumbleUpon can send major traffic with its userbase of around 3 million users.
  100. Stylehive : The Stylehive is a collection of all the best products, brands, designers and stores discovered and tagged by the Hive community
  101. Syncone : SyncOne is an Internet aggregator of bookmarking and browsing.
  102. Tagfacts : Basic bookmarking and tagging, a social knowledge base.
  103. Taggly : Store, share and tag your favorite links.
  104. Tagne : TagNe.ws is user-submitted, community voted links and resources related to SEO, Blogging, RSS, Tagging, Internet Marketing and more.
  105. Tagtooga : Says that this bookmarking engine can be used to discover great sites difficult to find in Google/Yahoo by browsing categories.
  106. Tagza : A very young Social Bookmarking site mostly being used by Indian and Pakistani web masters.
  107. Technorati : Always changing and reinventing themselves, this recognized authority offers links to blogposts, tagging and a social bookmarking WTF section.
  108. Tedigo : Personal and social bookmarking in Spanish and English made simple.
  109. Thinkpocket : Lets users pocket websites you find valuable. It is a web service that aims to help store, organize and share your favorite sites
  110. Thoof : Thoof is a user generated news and information service that claims to learn about what users are interested in and delivers news that they care about.
  111. Totalpad : TotalPad is a new online news and article community where people are free to voice their opinions
  112. Urlex : With URLex system users are able to leave a comment regarding any internet link on any site. Possibly good for linking :)
  113. Uvouch : Another basic social bookmarking site, users can save their findings with one click, at one place and access it from anywhere.
  114. Vmark : An online bookmark and online favorites manager.
  115. Voteboat : VoteBoat is a user-controlled rating and voting site.
  116. Votelists : VoteLists lets users create a list of rankable items. Other can add items, comment on them, rate them and more!
  117. Vuju : Vuju allows user to submit/publish content which can be tagged and promoted.
  118. WeTogether : Social bookmarking site where people will have great opportunities to promote their own sites.
  119. Whitelinks : Securely store and quickly access favorite websites whenever connected to the Internet,:
  120. Wink : A social search engine where users can share results and answer questions. Users build profiles which can link out to bookmark pages or other web sites (hint hint).:
  121. Wirefan : Social bookmarking, news articles submission site.:
  122. Xilinus : Organize and manage bookmarks online.:
  123. Xlmark : xlmark is an easy social bookmarking site:
  124. Yahoo! Bookmarks: The MOST POPULAR social search and bookmarking service on the web. It’s similar to Delicious and something they launched before acquiring Delicious. Yahoo Bookmarks lets users store bookmarks using their Yahoo Toolbar and access them from any computer.
  125. Yattle: Bookmark Management and Mini-Blogging Service.
  126. Zlitt: Zlitt is a social bookmarking system which gives users the opportunity to share and tag favorite news, images and videos.
  127. Zurpy: Saves bookmarks, text clippings, images, files, and news feeds in one place.
Do you have any suggestions of other social bookmarking sites? Please feel free to add them in the comments below.
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