delicious.com
reddit.com
stumbleupon.com
Pinterest.com
diigo
pinterset.com
plurk.com
delicious.com
reddit.com
stumbleupon.com
delicious.com
Plurk
Scoop.it
Pinterest
lokerdone
Thanks for sharing such informative list of sites.
delicious.com
reddit.com
stumbleupon.com
plurk.com and more.
sfcsf.org/
bookmarkingbase.com/
fearsteve.com/
bookmarkwiki.com/