A social microblogging service similar to Twitter, built on open source tools and open standards. Allows users to send text-based posts up to 140 characters
With Mister Wong you can search for the best websites, save them and share them with others for free. Search and discover new and interesting websites!
a web-based personal and social bookmarking service. The service launched in May 2004 and is one of the oldest social bookmarking services that still operates independently
an online platform for people to create their own social networks [2], launched in October 2005.[1] Ning was co-founded by Marc Andreessen and Gina Bianchini. Ning is Andreessen's third company (after Netscape and Opsware).