World Flying Disc Federation

http://www.wfdf.org

European Flying Disc Federation

http://www.efdf.org

Ultimate Players Association

http://www3.upa.org/index

Beach Ultimate Lovers Association

http://beachultimate.org/home

Nederlandse Frisbee bond

http://www.frisbeesport.nl

Ultilinks

http://www.ultilinks.com

Ultimate Handbook

http://www.ultimatehandbook.com (Oud)

http://www.ultimatehandbook.com (nieuw)