Museums, Reference, etc.

Minerals of Franklin/Sterling Very highly rated!

Palache's Papers Classic 1935 USGS Reports

Hobbyist/Collector Sites

Fluorescent Mineral Society an excellent starting point

Ken's Fluorescent Minerals one of the first; still one of the best

Franklin Photo Gallery Simply the best Franklin photos!I

Commercial Sites

charles b. ward looks like good stuff!

Polman Fluorescent looks to be worth checking out.