I made a new search engine to search Amazon’s Listmania! lists. You can simultaneously search user-created lists on Amazon websites in the U.S., U.K., and Canada, and use all the usual Google search modifiers such as intitle:keyword — making it far more useful than Amazon’s own deeply-buried Listmania search option (which only searches your nation’s version of Amazon, and not the others). You can also put in a book or film title, to see if there’s a list of similar titles.
Search Amazon Listmania! lists: