Top 15 Most Popular Social Bookmarking Websites, March 2013

A social bookmarking service is a centralized online service which enables users to add, annotate, edit, and share bookmarks of web documents.[1] Many online bookmark management services have launched since 1996.

1 | Twitter
2 | Pinterest
3 | Reddit
4 | StumbleUpon
5 | BuzzFeed
6 | Delicious
7 | Tweetmeme
8 | digg
9 | FARK
10 | Slashdot
11 | Friendfeed
12 | Clipmarks
13 | Newsvine
14 | Diigo
15 | DZone