Voices in my head: Advertising's global reachhttp://clicked.msnbc.msn.com/archive/2007/11/19/473604.aspxThis interview with Mark Tungate is a good example of what's so fun about talking to someone about their field of expertise. That buoyant enthusiasm is the reason I enjoy doing these "Voices" chats.In this case the field of expertise is advertising. Asen-USCommunityServer 2.0 (Build: 60608.1)