A social bookmarking is a centralized online service which enables users to add, annotate, edit, and share bookmarks of web documents. These sites are also the great source of quality do-follow backlinks. List of free do-follow social bookmarking sites - New updated Nov. 2013.
http://indiaarievip.com/
http://www.h3s.net/
http://tyxmg.com/
http://www.bb3b.com/
http://jobmultipost.com/
http://akcees.info/
http://bdsdz.com/
http://www.aldosoraluz.com/
http://e29cl.com/
http://exraylab.com/
http://socialmediaworld12.com/
http://www.bookmarkgolden.com/
http://www.nascarjon.us/
http://wuwt.net/
http://programmingoffice.com/
http://indiaarievip.com/
http://www.h3s.net/
http://tyxmg.com/
http://www.bb3b.com/
http://jobmultipost.com/
http://akcees.info/
http://bdsdz.com/
http://www.aldosoraluz.com/
http://e29cl.com/
http://exraylab.com/
http://socialmediaworld12.com/
http://www.bookmarkgolden.com/
http://www.nascarjon.us/
http://wuwt.net/
http://programmingoffice.com/