Charity advice

I'm thinking of donating to help wildlife (especially birds) in the Gulf due to the oil spill. What charity or charities do you recommend? I'm thinking about the National Audubon Society.

Monk music

Having just re-listened to the Anathem (Neal Stephenson) audiobook with its really nice monkish music at each chapter start, I really want to listen to some monk music. (I'm sure there's gotta be another name for it, but I can't think of it.) Anyone got a link to free downloadable monk music recordings, or barring that anyone want to recommend some that I can buy?

Edit: Is it Gregorian chants that I'm thinking of? I want polyphonic, male choir, acapella, Latin.