Thought you guys might be interested in my spare time project to plot Facebook friends and photos on Google Maps: http://friendatlas.appspot.com.
I've seen a few apps plotting friends but felt there was room for UI improvement.
I haven't tested with >500 friends yet so apologies if there's any glitch.
It's been a fun side project but always appreciate any ideas on how to monetize. Perhaps contacting a few ad agencies to see if they'd be interested in skinning it for a client microsite?
Appreciate any feedback.