Nah, web 2.0 was about the power of the social mind and collectivism. Facebook was actually one of the first sites to reject that mindset and focus on walling off their users. When I wrote for AllFacebook in 2006 I think I actually wrote something arguing they were closer to Tim O'Reilly's idea of web 3.0 or the semantic web, wherein all information is easily related to other information.

What I meant is that being cashflow positive means the new generation of web companies has a successful example to look to.