How may Facebook make profit steams down the road

The one thing Facebook haven't worked out yet is how to utilize their incredible product to produce the most money, consistently as well as on an ongoing basis ??? i.e. finding the suitable business model. A really interesting topic to create my first blog about, because, in my view, identifying the ideal business model for Facebook can not be achieved using conventional thinking, like, just thinking about Google and search engine ad revenue, by way of illustration.