The LibrarianInBlack posted about the Soundogs sound effects search engine. It seems to be pretty cool… But FindSounds is cooler.
FindSounds is a specialized search engine for sound effects and musical instrument samples. You can specify audio resolution, sample rates, file formats, mono/stereo, and file size in the search. And all the sounds found using FindSounds are free (better than Soundogs).
Chris Sherman wrote an article about it awhile back.