I recommend you take a 2-3 day trip to the Bay Area for a quick-hit introduction to what matters with Facebook, cut thru the clutter of all the things you COULD do, and get the practical examples of what you SHOULD do right now in your business.
This conference, which is being organized by my friend Dave McClure (full disclosure -- he's also a TeachStreet board member and investor), will surely be a good investment of your time and money. There are tracks for both the marketing and technical folks, but I'm betting you'll want to immerse yourself for the full Sunday to Tuesday experience, and then give yourself a 30-day deadline to implement a high-value add application of your own that makes sense in the FB ecosystem.
If you're heading to the conference, definitely let me know!