http://www.keynotesmagazine.com/article.php?uid=116

Yea, lrn teh timpani. it's really general facts here percussionist SHOULD at least know.
Oh, at here, it teaches strokes too. =) all the best!

http://www.usafacademyband.af.mil/shared/media/document/AFD-070615-053.pdf

oops, and this. This is more for the SL or SL-to-be. But well, it doesn't hurt for you to know more. OK, there's parts where everyone shd noe. SO PLS READ THIS if not i will kill you.