An update on Laura Huxley's book, You Are Not the Target, discussed Monday: Jesse Walker pointed out to me that the Internet Archive has a copy which can be borrowed by creating a free login. I created an account and verified that I was able to borrow it for an hour. Jesse remarks, "The lending library at archive.org is a great resource for this sort of thing."
(As far as I can tell, you can keep borrowing it until you've read it, but you can't borrow it during somebody else's one-hour borrow.)
There's quite a bit of Robert Anton Wilson material at the Internet Archive.