American Youth Circus Organization
   Promoting the participation of youth in circus arts.
   http://www.americanyouthcircus.org

Circus Fans Association of America
   Organization founded in 1926 to promote and preserve the circus as an institution. Includes magazine back issues, articles, and photographs.
   http://www.circusfans.org/

The National Circus Project USA
   Arts in education outreach program, that performs in hundreds of schools each year.
   http://www.nationalcircusproject.com