Server

REDbot
RED is a robot that checks HTTP resources

Social Bookmarking Sites

Name	Description	Web address

		BibSonomy
BookmarkSync		bookmarksync.com
CiteULike		citeulike.org

Delicious	Rumored to eventually be closed by Yahoo![3], the site was instead sold to Avos Systems on April 27, 2011.[4] Yahoo! will operate the site until July 2011.	delicious.com
Digg		digg.com
Diigo	Diigo (digest of Internet information, groups, and other stuff) is a free online tool designed not only to bookmark web pages in one convenient location, but to highlight key points for easy reference. The site makes it easy to share and comment on resources with colleagues whether in an academic setting or in a working environment.	diigo.com
Faves		faves.com
folkd		folkd.com
GiveALink.org		givealink.org
HeyStaks	Social and collaborative bookmarking. Heystaks helps users to improve their search experience suggesting better results.	HeyStaks.com
Knowledge Plaza	Enterprise bookmarking tool for all information formats: not only websites (like Delicious), but also documents, contacts, e-mails, discussions, book references and wikis.	knowledgeplaza.net
Licorize	Bookmarking tool which integrates bookmarking with to-do management and Getting Things Done styled tools.	licorize.com
Linkwad		linkwad.com
Microsoft TechNet	Technical information, news, and events for information technology professionals.	technet.microsoft.com
Mister Wong		mister-wong.com
Mixx		mixx.es
Microsoft Developer Network
My Web
Newsvine
Oneview
Reddit		reddit.com
SiteBar		sitebar.org
Squidoo		[This link has been blocked by Wikipedia]
StumbleUpon		stumbleupon.com
Twine	[5]
Windows Live