Flashlight Worthy is a great site that specializes in book recommendation lists. The list are sorted by subject and the purpose is to list the best books of that subject — not necessarily the most popular. As Peter and Eric say: “We don’t list the best-selling books — we list the best books.”
I have found many great books on this site and today my book recommendations list — Literary Pen Pals — was published on the site. Check it out if you love to read books written as letters, e-mails, etc. It’s just like snooping, but you won’t get in trouble for it.