Day 80 of 100 Search Engines in 100 Days - A List of Extreme Niche Search Engines

Most Internet search engines have a general focus: their aim is to find and index information on the Web and make it searchable for you; after all, that's how they pay the bills. However, there are various Internet search engines out there that go the opposite route and become highly targeted, niche search engines. Here are just a few.

Related: Don't forget to check out the rest of the search engines profiled in the 100 Search Engines in 100 Days Table of Contents.