Below are two Facebook promotional units that I have seen more of:1. Friends in City, State 2. Friends' Popular Places Notably both are around location and proximity. Interestingly, one is focused on my home-town and the other on my travels: - the popular places are expectedly near my home city and regular Facebook Places check-ins. - the other unit though is showcasing friends outside of my city. I suspect that it is choosing Los Angeles because I have checked-in there multiple times over the last month.
Clearly proximity and location will play a key role in the forthcoming Facebook Deals... I imagine this is part of the piping / testing that will tie together location, Places, Deals and (of course) friends.