Photo Gallery: Mashup Campers Summary: Eleanor Kruszewski of Yahoo Developer Network leads the session on monetization and business models. By Bill Detwiler | July 19, 2006 -- 11:35 GMT (04:35 PDT) Follow @billdetwiler Previous | Next Image 6 of 18 Peter Hirshberg gave a presentation on the history of computer marketing at MashupCamp. Topic: Legal Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.