Boomerang World
   Lists websites organized by region and topic.
   http://www.flight-toys.com/boomerangs.htm

Search Amateur - Games - Boomerangs. How to build boomerangs, Plans, history, play games online free
   Their mission is to unite all associations, clubs and amateurs of boomerangs. List of links to boomerang plans, free online game, rules and history.
   http://www.searchamateur.com/corkboard/Boomerang.html