I saw several people asking around about lists of social bookmarking sites, so i thought to lend you a hand here. Here is a list of good social bookmarking sites that i used some time ago.
http://del.icio.us/
http://www.digg.com/
http://technorati.com
http://www.blinklist.com/
htt://ma.gnolia.com/
http://www.furl.net/
http://www.diigo.com/
http://www.complore.com/
http://www.tallstreet.com/
http://gamingtags.com/
http://indiagram.com/index.php
http://www.goesby.com/
http://teachershare.org/openig/
http://www.chaamp.com/
http://www.a1-webmarks.com/
http://www.tektag.com/
http://www.bookmark.it/
http://www.wirefan.com/
http://www.linkatopia.com/
http://www.optimiz.us/
http://www.web20toolbar.com/
http://www.tagtooga.com/db.tag
http://www.linklog.nl/
http://www.wykop.pl/
http://www.ineffabile.it/
http://www.blogmarks.net/
http://reddit.com/
http://myweb2.search.yahoo.com/
http://www.connotea.org/
http://www.taggly.com/
http://otavo.com/
http://joel.reddit.com/
http://www.i89.us/
http://www.shadows.com/
http://www.backflip.com/dir_start.ihtml
http://www.meme-stream.com/
http://www.getboo.com/
http://www.blogmemes.net/
http://myweb.yahoo.com
http://www.netvouz.com/
http://www.lilisto.com/
http://www.linkologia.pl/
http://www.bloglot.com/
http://segnalo.alice.it/?
http://h2obeta.law.harvard.edu
http://www.lookmarks.com/
http://www.lifeslot.com/
http://www.30daytags.com/fresh
http://imp.etuo.us/
http://de.lirio.us/
http://motor.crispynews.com/
http://www.linuxquestions.org/bookmarks/
http://www.dinnerbuzz.com/
http://www.givealink.org/cgi-pub/mainPages/index.cgi
http://www.leze.de/
http://www.librarything.com/
http://www.linkblog.com.br
http://linkfilter.net/
http://www.memestreams.net/topics/
http://www.oyax.com/l
http://www.urlex.info/
http://www.web-feeds.com
http://www.bloghop.com/
http://www.browsr.com/
http://mybookmark.gokodo.com/
http://www.rojo.com/
http://www.bibsonomy.org/
http://blogmarks.net/
http://www.bookmarktracker.com/
http://buddymarks.com/
http://www.connectedy.com/
http://ez4u.net/
http://freelink.org/
http://www.fungow.com
http://www.gravee.com/
http://ww2.ikeepbookmarks.com/
http://www.markaboo.com
http://www.mobleo.net/
http://www2.myhq.com/
http://www.mylinkvault.com/
http://www.mypip.com/home/
http://www.myvmarks.com
http://www.pixelmo.com/
http://www.searchles.com/
http://www.shoppersbase.com/
http://socialbookmarking.org/
http://www.syncone.net/
http://www.startaid.com
http://www.zoogim.com/
http://bwsmith.com
http://aboogy.com
http://socialbookmarkingsite.com/
http://www.Blogmemes.com
http://www.BlueDot.com
http://www.diigo.com
http://www.putvote.com
http://www.tagcloud9.com/
http://prosocialbookmarking.com/
http://www.niallkennedy.com/blog
http://kinja.com
http://news.netscape.com
http://stunmbleupon.com
http://www.newsvine.com
http://tailrank.com/
http://reader2.com/
http://myprogs.net/
http://www.oyax.com/
http://www.feedmelinks.com
https://sourceforge.net
http://www.xlmark.com/
http://www.winklinks.com/
http://www.2centsnews.com/shakeit.php
http://rollyo.com
http://www.dealoid.com
http://openwire.com
http://www.Looklater.com
http://www.Markaboo.com
http://www.Rawsugar.com
http://www.Shadows.com
http://www.Simpy.com
http://www.Spur.com
http://www.Wink.com
http://mootion.com/
http://www.digstock.com/
http://dotnetkicks.com/
http://www.indianpad.com/
http://www.motorpulse.com
http://www.mp3rama.com
http://sportsflip.com
http://www.newsgarbage.com/
http://www.spymy.com
http://tutorialism.com/
http://www.wedigsports.com
http://www.strobe.org
http://www.oks.ph
http://www.apbnews.com/
http://www.braindigg.com
http://www.bythemasses.com
http://www.business-planet.net