Football
American Football Association (AFA) - http://www.americanfootballassn.com/
Dedicated to the advancement of semi-pro and minor league football throughout the United States and serves as the National Organization for non-professional leagues and teams from coast-to-coast.
USA Football - http://www.usafootball.com/
Independent non-profit organization whose purpose is to galvanize, support and promote the sport at all levels of amateur football.