Hi Friend,
Huge List of Social Bookmarking sites, however you left some most effective social bookmarking websites, as below:
blinklist.com
connotea.org
delicious.com
reddit.com
bibsonomy.org
diigo.com
folkd.com
newsvine.com
a1-webmarks.com
buddymarks.com
jumptags.com
kwoff.com
url.org
xmarks.com
youmob.com
bookmark-manager.com
dropjack.com
givealink.org
licorize.com
lilisto.com
linkagogo.com
bookmarktracker.com
chrdsl.org
easybm.com
favoor.com
jeqq.com
karmalynx.com
mylinkvault.com
pfbuzz.com
qaafe.com
sitejot.com
smokymtcab.com
101ako.com/
bookmark4you.com
business-planet.net
cloudcolumns.com
fashionablylatent.com
humsurfer.com
kojaxx.com
linkarena.com
linksnapr.com
markingnews.saanj.net/
mesothelioma-org.com
mouvement.tv
mysitevote.com
news.yamour.com
openbuzz.in
opentags.in/
sjbb.org
stickytags.in/