I'm curious: If you have the resources to donate (which you seem to imply by the statement that you have resources for which you can make a decision), and think it would be good to donate to the SIAI, then why don't you donate?

(I don't donate because I am not convinced unfriendly AI is such a big deal. I am aware that this may be lack of calibration on my part, but from the material I have read on on other sites, UFAI just doesn't seem to be that big a risk. (There were some discussions on the topic on stardestroyer.net. While the board isn't as dedicated to rationality as this board is, the counterarguments seemed well-founded, although I don't remember the specifics right now. If anybody is interested, I will try to dig them up.)