That's about as fine (and extensive) a list of Holster sites as I've ever seen. However, either I missed it, or you forgot to add the finest holster maker in the world. Check out Matt Del Fatti's site, Del Fatti Leather. This retired Wisconsin pro-gun retired Sheriff Det., simply makes the best. Be careful though, he can talk your ear off, but when you're finished you'll know a lot more about holsters than you thought there was to know.
