www.facebook.com Facebook is a social utility that connects people with friends and others who work .

www.twitter.com   Twitter is a free social messaging utility for staying connected in real-time.

www.delicious.com  Keep, share, and discover the best of the Web using Delicious .

www.stumbleupon.com  It's the best way to discover the things you like on the web.

www.myspace.com    Find friends & classmates, meet new people .

www.mixx.com  Mixx is your link to the latest news and top videos and photos from around the web .

www.digg.com/   Digg is a place for people to discover and share content from anywhere on the web

www.tagged.com Tagged.com is a social networking site founded in 2004 .

 www.buzz.yahoo.com/  Buzzing? You Tell Us! Top News and More - Yahoo!

www.reddit.com το reddit είναι μία πηγή ειδήσεων για τον παγκόσμιο ιστό.

www.tweetmeme.com/  Search and Retweet the Hottest Stories on Twitter .

www.technorati.com/  Technorati collects, organizes, and distributes the global online conversation.

www.kaboodle.com Kaboodle is a fun shopping community where people recommend and discover new things.

www.propeller.com/   Welcome to Propeller.com

www.newsvine.com/ Using Newsvine .