How Twitter should make money

This boils down to: (1) Charge corporate users of Twitter on a per-user-followed basis (2) Strongly discourage "ego"-driven users of Twitter who follow lots of people

#2 is fine, but will only decrease Twitter usage and won't make much money. Can Twitter really make enough money from #1 to be interesting? I doubt it. (Why do customer service departments need to follow lots of people, anyway?)