Multifacted search engine.

Microsoft's entry in the general-purpose Web search engine competition. Includes the usual filters for images, video, etc., plus the ability to find sites with RSS feeds, the inclusion of Microsoft Earth with the "Maps" option, and more.

Valued for its ability to "cluster" search results. (Formerly called Vivisimo.)

France-based search engine, with ability to search by country.

A version of Google that focuses on academic resources is Google Scholar.

SingingFish maintains the largest compilation of audio and video streams on the Web (over 30 million), including MP3, Real, Quicktime, and other formats. Over 100,000 listings are added each week.

Yahoo also has an image-search capability.