Read this article from Free Site Traffic.

“Nowadays, Social Bookmarking services are the most popular source for webmasters to drive visitors and traffic to their websites. Social Bookmarking let’s the users to save and manage their favorite bookmarks online on internet. It has been made in such a way that users can tag them with keywords and share them with others and watch their bookmarks. Also, you are able to keep the bookmarks private and share them with your friends and family only.”