Startup webapp Mind the Book is a book discovery platform that gives recommendations based on questions such as "How to Learn Ruby on Rails?" or "What is Important in Life?" Users can ask a question and see what books are recommended or search by the book and see what questions the book should answer.
When a user clicks on a book, they are presented with the cover, basic information, links to purchase from Amazon, and all of the questions the book answers as rated by other users.
The webapp is in open beta right now, and many refinements need to be made to realise its full potential. Users can contribute by adding books to the database and also by choosing which books are good answers to the questions posed by the webapp.
Don't expect miracles, but it's a clever webapp that will hopefully grow in usefulness as the database expands.