http://damron.com/
I remember the above as the first travel guide (outside of the one I can't think of).
Sorry to derail the thread so much!
Back to books!
Really, you can just walk into a gay/lesbian bookstore or look online. What are you looking for? Fiction? Non-fiction? Gay/lesbian history? Erotica? How to have lesbian sex (I remember a GF of mine who had never been with a woman before bought such a book before our first date..lol).
Hopefully, people will come in with suggestions.