The cost of storage is very low, so I'm hoping that between some reasonable advertising, pro accounts, and printing services the hosting bill can be covered eve

The cost of storage is very low, so I'm hoping that between some reasonable advertising, pro accounts, and printing services the hosting bill can be covered even with a lot of free accounts. DropBox has done this successfully, so I think it is very possible. Over time the cost of storage will continue to drop as well, making the financial equation more effective...