http://www.backflip.com/
http://www.barksbookmarks.com/
http://www.bibsonomy.org/
http://www.blinklist.com/
http://www.blipoo.com/
http://www.blogbookmark.com/
http://www.bluedot.us/
http://www.blurpalicious.com/
http://www.bmaccess.net/
http://www.bookkit.com/
http://www.bookmarkall.com/
http://www.bookmark-manager.com/
http://www.bookmarktracker.com/
http://www.bookmax.net/
http://www.buddymarks.com/
http://www.bukmark.net/
www.chipmark.com
http://www.citeulike.org/
http://www.claimid.com/
http://www.clipclip.org/
http://www.cloudytags.com/
http://www.complore.com/
http://www.connectedy.com/
http://www.connotea.org/
http://www.contentpop.com/
http://www.corank.com/
http://www.crowdfound.com/
http://de.lirio.us/
http://www.diigo.com/
http://www.digg.com/
http://www.dropjack.com/
http://www.easybm.com/
http://www.enroll.in/
http://www.ez4u.net/
http://www.favoor.com/
http://www.folkd.com/
http://www.freelink.org/
http://www.freezilla.co.uk/
http://www.fungow.com/
http://www.furl.net/learnMore.jsp
http://www.gather.com/
http://www.getboo.com/
http://www.hanzoweb.com/
http://www.hyperlinkomatic.com/
http://www.i89.us/
http://www.icio.de/
http://www.ikeepbookmarks.com/
http://www.iloggo.pl/
http://www.jigg.in/
http://www.kaboodle.com/
http://www.kinja.com/
http://www.lifelogger.com/
http://www.lilisto.com/
http://www.linkagogo.com/
http://www.linkarena.com/
http://www.linksnarf.com/
http://www.listerlister.com/
http://ma.gnolia.com/
http://www.markaboo.com/
http://www.marktd.com/
http://www.memfrag.com/
http://www.marktd.com/
http://www.memfrag.com/
http://www.memotoo.com/
http://www.mister-wong.com/
http://www.mixx.com/
http://www.mobleo.net/
http://www.multiply.com/
http://www.mybookmarks.com/
http://www.myhq.com/
http://www.mylinkvault.com/
http://www.mysitevote.com/
http://www.mysitevote.com/
http://www.mywebdesktop.net/
http://www.newsvine.com/
http://www.oyax.com/
http://www.philoi.com/
http://www.plugim.com/
http://www.propeller.com/
http://www.quickieclick.com/