It’s interesting to know how they started! Oh yeah. (Sorry second response.) It’s sort of depressing that Facebook’s succeeded where Microsoft failed all that time ago.

Monopolising the network space for everyone’s interactions was a progression of the MS-software-on-every-desktop philosophy, but they tried it too early. They probably also cared too much about where the money was going to come from, and maybe also had an incompatible sense of ethics compared with Zuckerberg’s generation of executives.