How to use Facebook credits?

Are there any revenue models besides advertising and Facebook credits, that Facebook can potentially use to increase their revenues?

• Being the most trafficked site on the internet, Facebook can accelerate their revenue in more innovative ways.  Are there any new ideas that they or others are considering to monetize their massive traffic?

• Answer:

  I'm expecting them to switch to a more distributed ad strategy - eg published on third party websites and not just FB canvas ads.  Considering that they have a significant amount of like buttons all over the web and they're collecting massive amounts of social graph data, it would be extremely easy for them to create social targeted ads, similar to adsense....  They already built the self service piece, bid marketplace, and are doing a ton of adserving. Very simple for publishers to switch a bit of code for an existing like button to get a FB social targeted ad.  Also, I'm willing to bet conversion will be much higher on a socially targeted ad than a contextually targeted ad. They've already said they are investing heavily in mobile this year and there are some leaks hinting towards a FB phone. So, mobile is the other obvious answer. Just like google's strategy at one time was to get more people on the internet because they owned so much of it, FB's strategy probably will be to get more people on to the social web because they own so much of it... Just my two cents.