http://cdn.conversationsnetwork.org/ITC.Where2.0-PerryEvans-2009.05.21.mp3 Perry Evans - Will the Promise of Location Based Ad Models Ever Get Off the Ground? http://feeds.conversationsnetwork.org/~r/channel/itc/~3/ZFU7vcfKJlE/detail4182.html 2009-10-22 http://assets.conversationsnetwork.org/channels/ITConversations/itc-300x300.jpg