Le Parkour is the Art of Movement. 
ADDITION:
QUOTE(nuclearrabbit @ Sep 20 2005, 01:29 AM)
[center]It's kinda dangerous if you don't know your limits. I've heard some 14 year old fell to his death in England not too long ago.
The great thing about Parkour is you can do it anytime, anywhere![/center]
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Yeah I found this nice website for all your PKing needs. It's just starting off so it's still pretty small but I'm sure any and all PK events will be posted there:
http://www.parkour.net/The article about the death is here:
http://news.bbc.co.uk/1/hi/england/oxfordshire/4136480.stmIt's inaccurate about describing what "free running" is.