If you didn't already know, Facebook has a variety of apps to help enhance your fan pages. If you are in real estate, a great one to have is the Market View app. It will add a "Real Estate" tab on the left hand side of your page, under the other tabs: wall, info, photos, etc.
This real estate tab shows a market snapshot of your area, including market data pulled from Zillow.com, school info from education.com, and a walk score-how walkable an address is based on its proximity to amenities. It even allows space for your logo and company info, and, for all you Realtors our there, up to 4 of your listings!
There is a premium version of this app you can pay for, which will get you lead capture, and more reach as far as your concentration area.
Click here to see an example of what a Market View real estate tab looks like. If you'd like to add the app to your page, go to http://apps.facebook.com/marketview/ and click on Facebook Tab. It will walk you through the rest!