Business Week reporter Heather Green is doing a series of podcasts on the business models of various podcasts and the latest is with the the hosts and creators of Grape Radio (a podcast about wine). The podcast is not about wine, it’s about how to do a successful podcast. This entire series has been excellent and a “must listen” for any current/future podcaster. Grape Radio is getting $1,000 a week from sponsors and they’re sold out into 2006. The price is going up.