Allows you to build a customised feed of made up of content your friends on other collaborative sites have shared, including news articles, photos, ...
We have taken a sample of nine of these companies - Ning, KickApps, CrowdVine, GoingOn, CollectiveX, Me.com, PeopleAggregator, Haystack, and ONEsite - all of which provide free baseline services, and reviewed them individually below
Ping.fm is a simple service that cuts out the middle man when it comes to posting to your social services such as Facebook, Twitter, Jaiku, Tumblr and Pownce with more being added soon.