Do Google and Amazon count as web 2.0? Maybe they're 1.0. Anyway, what I think of as the three biggest "internet companies", Google, Facebook, and Amazon, hav

Do Google and Amazon count as web 2.0? Maybe they're 1.0. Anyway, what I think of as the three biggest "internet companies", Google, Facebook, and Amazon, have all decided it's worth their while to get into this kind of systems work. E.g. HipHop (Facebook), Cassandra (Facebook), BigTable (Google), Android (Google), Go (Google), AWS in all its myriad manifestations (Amazon). Maybe when you do anything on a large enough scale, this stuff becomes important.