Which suggests to me that you have to start desperate with a purely social site. You have to, have to, have to reach a critical mass or you're boned. Free stu

Which suggests to me that you have to start desperate with a purely social site. You have to, have to, have to reach a critical mass or you're boned. Free stuff or promises of it, guerilla PR, outright paying users, spam-like invitations -- whatever it takes, you need to consider it.