The one lesson that I've learned in my experience while I did Hotmail and since I've done Hotmail is you have got to own the customer. The customers came to us for free at Hotmail. Even though they were free customers, what the last 10 to 15 years of my experience of the Internet has taught me is that it's OK if you don't monetize them right up front. Eventually you will be able to.
Get the user base and later you will find the way to monetize it
