Deer Creek Regulators
A helpful site to locate clubs around the US. It has many good descriptions of the various clay target shoots available.
ATA Amateur Trap Association
CMP web site
Official site of the Civilian Marksmanship Program, or CMP.
Ebay like auctions of firearms, parts, and accessories.
Indiana Gun Club
Large shooting facility in Indianapolis. They also have a huge number of fine guns for sale.
Gun Clubs of Indiana
Just a good map of clubs in the state with information of what each club offers.