For example, I popped in Lord Foul's Bane by Stephen Donaldson and got:
1 Globalization and its discontents by Joseph E. Stiglitz (expected 17.1, found 0; unsuggestions)
2 Vanishing acts by Jodi Picoult (expected 23.2, found 1; unsuggestions)
3 A new kind of Christian : a tale of two friends on a spiritual journey by Brian D. McLaren (expected 15.2, found 0; unsuggestions)
4 Mr. Maybe by Jane Green (expected 13.4, found 0; unsuggestions)
5 Bergdorf blondes by Plum Sykes (expected 13.3, found 0; unsuggestions)
I'm not sure how useful the site is, but it's at least sorta interesting.