The Great UnSuggester

This, surely, is what technology was invented for:

Unsuggester takes "people who like this also like that" and turns it on its head. It analyzes the seven million books LibraryThing members have recorded as owned or read, and comes back with books least likely to share a library with the book you suggest.

After all, who wants to know about things that will slide down your mental gullet like a proverbial oyster? What we need are intellectual chicken bones that makes us choke on new ideas.