Academy of American Aeronautics (AMA)
The AMA is the governing body for many aspects of model flying in the United States.
Cross Country Soaring  Most of the aircraft used are RnR Products.
Luvara Air Racing team home page operated by Mike Luvara.  This is a great site for pictures of some giant scale racers in action.

FatLion operated by Randy Carr 
An excellent site for the beginner to expert.  Explains clearly the various types of R/C soaring and offers suggestions for aircraft in these categories.