Social Bookmarking Sites

1. Delicious - The most popular social bookmarking service, Delicious lets you save, tag, manage and share anything you come across on the Internet.

2. Digg - Digg is a service that lets users rank shared content. So along with bookmarking a site, Digg users, or DIggers, can bookmark content up or down (called "digging"). Digg is a great way of finding out what social bookmarks are currently hot.

3. Stumbleupon - Think of Stumbleupon as a personal recommendation system. By tracking your favorite social bookmarks and the social bookmarks of people with similar tastes to you, StumbleUpon can show you new Websites that it thinks you will like.

4. Reddit - Similar to Digg, Reddit lets users rank content and stories, which makes them appear more or less prominently on the site.

5. Furl- Similar to del.icio.us, Furl stores copies of the pages saved, automates finding users with similar interests. Furl archives can be exported in MPLA or APA.

6. Technorati - Technorati is a search engine that's concerned primarily with blogs and blog posts. It's "niche" search engine format makes it a perfect if you're simply looking for what's going on in the blogosphere.

7. WireFan - WireFan is a social bookmarking site that's similar to Digg, but as of now appears more focused in news and business items.

8. Tagfoot.com - A newer service, TagFoot lets users share just about anything they like. TagFoot also allows options for sharing content with certain people, as opposed to all TagFoot users.

9. Jumptags - Jumptags is a social bookmarking site with a Web 2.0 interface. That means that it can be clean and quick. Utilizing formats like AJAX, Jumptags claims to offer the next generation of social bookmarking.

10. CiteULike - CiteULike is social bookmarking site aimed at students and academics. The service lets people store articles, papers and other resources that they think are useful and important. Users can also find and connect with people who are researching and reading about the same topics.

11. MyProgs - MyProgs offers social bookmarking that's strictly about programs. Use My Progs tf you want to find the most popular productivity, entertainment or office software. MyProgs is a fast way to discover the most popular programs that will suit your needs.

12. Reader² - Reader² lets you share the list of books you have read or want to recommend. By viewing what's popular, you can find new books by tags or authors.

13. BlinkList - BlinkList is a service that lets users bookmark and retrieve Websites and other content quickly. BlinkList positions itself for users who want to store and retrieve information in just a few seconds.

14. Kaboodle - Social bookmarking for shoppers. That's what Kaboodle offers. Users can tag and list items that they've bought or want to buy. They can also view other users' shopping lists and find new items.

15. Mixx - Mixx is a news bookmarking service. Similar to Digg, Mixx seems to focus more on hard news.

16. Faves - Faves is a social bookmarking service that offers a range of add-ons. Along with mobile access, Faves also gives users an option to integrate the service with their blog or Website.

17. Clipmarks - Clipmarks lets users grab certain pieces of text, videos or pictures from a Website. Clipmarks can come in handy if you often find yourself just wanting to save a particular part of a page instead of the whole thing.

18. Del.irio.us - Del.irio.us is a social bookmarking service that strives to filter results. If you're constantly overwhelmed by the huge amount of results a simple search returns, Del.irio.us can help.

19. netvous - Another social bookmarking service similar to Delicious, netvous offers social bookmarking with options for mobile updates and access.

20. Dealigg - Another niche social bookmarking site, Dealigg lets users submit sales and specials they like. A great way to find huge deals on just about everything.