Usa.net was a great email service offering free web based email accounts for everyone their service was one of the best but some of their stupid marketing people gave them the advice to make it a paid service for generating revenue.I think they made a big mistake for they will lose at least 98% of their registered users who wil switch to other web based email accounts.They could have thought of other ways to generate more revenue other than charging for the email accounts.I bet they will regret this move in future.