3 ms·Once YO gets to a critical mass, there are a lot of valid and relevant business models.by d0m 12y agoOnce YO gets to a critical mass, there are a lot of valid and relevant business models.amirmc 12y agoFrom what I've seen and experienced as an end-user, it's just advertising. So no, I don't think there are a lot of business models. I'd love to be proven wrong someday.msvalkon 12y agoCare to elaborate?