Earlier quoted context omitted.
Exponential growth first and then new features is normally a viable path for a Web 2.0 business, but the founder of Chatroulette is finding it a bit hard to deal with new features when he has to worry about scaling his exponentially growing site, including limo rides and negotiations with Russian billionares. To the OP: Isn't the strategy for succeeding at business in Russia to find out how to get in cars with Russia…
Not sure about the legal stuff, but I'm still curious about the making money part. So the business model is either 1) advertising, or 2) getting acquired? That's what I think of when I hear "Web 2.0 business."
Yup, advertising or getting acquired is the typical Web 2.0 business. There could also be some freemium options.