what's your definition of mainstream and how is that a benchmark of success? Not many web apps beyond Google, Yahoo, MSFT, Facebook, MySpace have much of a sho

what's your definition of mainstream and how is that a benchmark of success? Not many web apps beyond Google, Yahoo, MSFT, Facebook, MySpace have much of a shot going "mainstream." Most YC companies (in fact, none at this moment) will not go mainstream, yet several have been successful. Even a startup with a lot of traffic, like Scribd, is not mainstream, but it doesn't seem to have negatively affected them.