Freestyle Frisbee Players Association [more]
Dedicated to the growth of frisbee freestyle play as lifetime recreation and a competitive sport. Event dates, results, rankings, instructions, and videos.
http://www.freestyledisc.org

Frisbee [more]
Describes the Beaufort Wind Scale as well as movies and pictures from Paganello and his personal tricks.
http://www.michaelmccafferty.com/frisbee.htm

Heinsville.com [more]
Contains details and pictures illustrating how to do various levels of tricks, a listing of equipment necessary to jam, and a picture gallery. Also sells trick rings.
http://www.heinsville.com/

jamago [more]
Freestyle portal based out of Nuremberg, Germany. Contains player profiles, pictures, tips, upcoming events, and videos.
http://www.jamago.com

Turboshred [more]
An evolving tournament format based on judging trick complexity. Includes pictures from past events, FAQs, and results.
http://www.turboshred.com