http://slashdot.orq/ 
http://flickr.com/
http://digg.com
http://del.icio.us 
http://www.technorati.com/ 
http://fark.com 
http://www.43things.com/ 
http://furl.net
http://myweb2.search.yohoo.com 
http://www.stumbleupon.com/ 
http://reddit.com 
http://www.squidoo.com/ 
http://www.librarything.com/ 
http://ma.gnolia.com
http://blogmarks.net 
http://www.fotki.com/ 
http://simpy.com 
http://shadows.com 
http://www.filmloop.com/ 
http://netvouz.com
http://kinja.com/
http://www.backflia.com/ 
http://connotea.org 
http://www.clipfire.com/ 
http://www.newsvine.com/ 
http://www.nextaris.com/ 
http://www.archive.org/bookmarks/brewster
http://iq.lycos.co.uk/
http://taas.librarv.uoenn.edu/  http://blinklist.com
http://www.zaadz.com/ 
http://www.kaboodle.com/ 
http://bookmarks.ning.com/
http://clipmarks.com/
http://www.gather.com/ 
http://www.stylehive.com/ 
http://spurl.net 
http://www.web2list.com/ 
http://www.nowpublic.com/ 
http://wists.com 
http://www.diigo.com/ 
http://blue.us/ 
http://bluedot.us/friends/dots
http://blinkbits.com 
http://www.listible.com/ 
http://rawsugar.com 
http://www.jots.com/ 
http://scuttle.org
http://www.listal.com/ 
http://de.lirio.us