Guide to the Perplexed, by Moses Maimonides.

http://books.google.com/books?id=YZWfvg2MkmEC&pg=PA378&ots=rQKZ4Apeh0&dq=guide+to+perplexed+circumcision&sig=Vun0UVx59inmmP168iD2WCF1zJM

(On-line searchable text! No dorky librarian asking you questions!)

The question I always ask about masturbation is: how much lust is excessive? How much is "just the right amount?"

You won't leave out poor old Onan, will you?

BOYS UNDER ATTACK is one of my favorite websites of all time.

Lots of boy-opinions and sexual questions.

members.optusnet.com.au/austbua/

I'll be looking forward to reading what you have to say, Youth.

---Didaskalos