I was poking around Microsoft's webpage, and I saw this page.
https://www.microsoft.com/learning/books/ereference/trial/default.aspx
It is a 10 day free trial to every book in Microsoft's complete e-reference library. Not sure how many books that is, but it sounds like a lot.
I'll probably take advantage of this when I have a free week or something where I can just pour over it all day.