Check the permissions for your social media and online accounts.
Compiles news stories shared by your friends.
Tell people how best to contact you by ranking various contact methods.
ifttt (if this then that) allows you to set up triggers on a wide range of networks including Facebook, Twitter, email, weather, etc., and actions to take when those occur.
News.me scans your Twitter feed and populates a list of the best stories.
Online address book synchronization
TwitDo is an automated "to do" list that is controlled via Twitter.
Cryptocat allows you to set up secure and encrypted chat rooms.
Photorank.me is like Klout for photos. It rates a user based on their photo-sharing exposure.
Justin.tv allows you to create a live video stream.
