Dofollow Social Bookmarking sites are essential to generate massive traffic to website in less time that help to get better SERP. There are following best social bookmarking website.
http://www.reddit.com/
http://www.stumbleupon.com/
http://slashdot.org/
https://delicious.com/
http://folkd.com
http://diigo.com
http://blinklist.com
http://bibsonomy.org
http://jumptags.com
http://startaid.com
http://connotea.org
http://kwoff.com
http://netvouz.com
http://sitejot.com
http://bookmark4you.com
http://a1-webmarks.com
http://moolets.com
http://weblinkr.com
http://mylinkvault.com
http://bukmark.net
http://sturvs.com
http://akonter.com
http://www.reddit.com/
http://www.stumbleupon.com/
http://slashdot.org/
https://delicious.com/
http://folkd.com
http://diigo.com
http://blinklist.com
http://bibsonomy.org
http://jumptags.com
http://startaid.com
http://connotea.org
http://kwoff.com
http://netvouz.com
http://sitejot.com
http://bookmark4you.com
http://a1-webmarks.com
http://moolets.com
http://weblinkr.com
http://mylinkvault.com
http://bukmark.net
http://sturvs.com
http://akonter.com