Update: On March 18th of 2011, Facebook phased out the use of Static FBML. Only Pages with existing instances of Static FBML are able to follow the steps in this post.
One creative way of acquiring Facebook Page connections is to offer free cool stuff for connections, that isn’t available to anyone else (I wrote about this back in January, but it’s worth going over again). For example, on Inbound Zombie I have free video tutorials to anyone who “likes” the Page. The videos are not accessible to anyone else.
How to display “connection-only” content on your Facebook Page
Using the Static FBML application and a bit of code (see below), you can display content to a visitor once that “like” your Page.
Here’s the FBML code for the custom tab:
See the Charityhowto Facebook Page to see it in action.