Live Streaming Schedule (NYC Time)Monday, April 2, 20129:00 AM - Caryn Marooney, vice president of technology communications, FacebookPRSA has asked me NOT to stream any sessions. But others at the conference are, so watch my twitter feed and I'll retweet their links.  Sorry....

The business model known as collaborative consumption -- where buyers and sellers trade without intermediaries through an online community marketplaces -- has been a homerun for Ebay and Craigslist.But a new breed of start-ups like AirBNB, which apply the same model to service industies, where...