http://bicycletutor.com/adjust-cantilever-brakes/
http://www.youtube.com/watch?v=xZEl3yh0Cos&feature=PlayList&p=F10B3166632B68A3&playnext_from=PL&playnext=4
http://www.parktool.com/repair/readhowto.asp?id=19
http://www.google.com/search?q=park+tool+bt-2&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a