from Hacker News

The Uphill Battle Of Social Event Sharing: A Post-Mortem for Plancast

by moses1400 on 1/22/12, 10:09 PM with 1 comments

• by amac on 1/22/12, 11:26 PM

  Useful summary of the challenges (and opportunities) in social networking. He's written two other good summaries too:

  http://markmhendrickson.com/three-pillars

  http://markmhendrickson.com/content