"Here is a list of free Internet book databases:
An anonymous reader asks: "There have been several attempts at creating a book database like the IMDB. I list several [in the full article] and I would like to know which you like best, and which you use most often. What are the features you find the most useful out of the book databases you use?"
IBDOF - The Internet Book Database of Fiction
IBList - The Internet Book List
Parchayi.net - Parchayi.net Book Database
SciFan - SciFan
FantasticFiction.co.uk - Fantastic Fiction
And I know of only one commercial one, the FictionDB, which is the largest among all the ones that have been listed.
Does anyone know of any others?"