» Freestyle Frisbee Players Association    Developed to help new players learn how to freestyle. Includes history, illustrated descriptions of skills, photographs and videos.    http://freestyledisc.org/

» UK Ultimate Association: Frisbee History    Describes the origins of ancient and modern flying discs.    http://old.ukultimate.com/history/history.aspx

» Ultimate Handbook    Rules of the sport, tutorial of various plays, description of throws, information for team captains, glossary of terms and related links.    http://www.ultimatehandbook.com/uh/

» Ultimate Players Association: About Ultimate    Includes frequently asked questions and a list of ten simple rules.    http://www2.upa.org/ultimate

» Ultimate VideoPapers    Video, text and slide images about throwing skills, field strategy and handling skills.    http://ultimate.lcs.mit.edu/