[ktRolster]

Not to mention: while public libraries are great and I love them, thy are often lacking in-depth knowledge.

My local public library doesn't have a book on advanced logic design, for example. It favors a more 'general' collection, and thus books with heavy reliance on math tend to be omitted. Same with in-depth law books, they just aren't there.

[pmoriarty]

You could go to a university library. Often they're open to the general public for a modest fee.