I found this website while looking for Nebraska gun shops. It's set up so you can look for FFL holders by state or by various distances from a zip code.
While it gives you a listing of FFL holders, the map feature is WAY off. It put some of the guys I know of in the wrong town entirely. If fact I don't think I found one that was shown correctly as to location.
http://fflgundealers.net/
