Ski speech for class

i want to do an unformative speech on the history of freeskiing as we expirience it. the new jibbing sybculture of skiing

i need 3 main points. and it needs to be about 8 minutes.

what is a good way to divide the last 10 years or so of jib skiing up into 3 section? im think about the industry (skiboard, 1080, mothership, midfat twins) video indusrty (poorboyz, level one, etc...) and riders (canadian airforce to tj schiller or tanner rainville)

anybody got any information i could use? maybe highpoints in the sport? ie- when parks started to let skiers in, development of rails, park moving to backcountry then to bigmountain.

if you guys can give me some help, id be your friend for life!
-joe

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Golden Wheel Chair Award 2004-09-21