http://cdn.itconversations.com/ITC.PopTech2005-YochaiBenkler-2005.10.21.mp3 Yochai Benkler - Participation Revolution http://www.itconversations.com/shows/detail776.html 2006-07-03 http://assets.conversationsnetwork.org/channels/ITConversations/itc-300x300.jpg