Top 15 Most Popular Social Bookmarking Websites

https://twitter.com/

https://pinterest.com/

http://www.reddit.com/

http://www.stumbleupon.com/

https://delicious.com/

http://tweetmeme.com/

http://digg.com/

http://www.fark.com/

http://slashdot.org/

http://friendfeed.com/

http://www.clipmarks.com/

http://www.newsvine.com/

https://www.diigo.com/

http://www.scoop.it/

http://chime.in/

http://socialbookmarkingsites.co/