Wikis- I do tend to use Wikipedia if it comes up when I'm searching for something. So far I have not gotten bad information. So it works. While I was exploring Wikis, I checked out the Bull Run Library. They have a service that for $20 a month they will send you 3 books, after you read or whatever two of them you send back two and get two new ones. There are no late fees and no shipping charges. But wait, you are paying $20 a month for this service. Is is possible that you are in fact paying for shipping and late fees up front. Interesting.
I also liked Book Lovers Wiki, a good source for reviews.