FIS World Cup - Freestyle - International FIS Freestyle World Cup calendar, results, athlete bios, and rules. - http://www.fis-ski.com/uk/disciplines/freestyle.html
Freestyle Ski Tricks - Instructional page regarding to the techniques involved in doing freestyle ski tricks. - http://www.abc-of-skiing.com/freestyle-skiing/freestyle-ski-tricks.asp
Wikipedia - Freestyle Skiing - Information on history and types of freestyle skiing. Also includes links to other freestyle web sites. - http://en.wikipedia.org/wiki/Freestyle_skiing