Clay's Sound Emporium 
There's lot of WAV files here from various TV shows and movies. Categories include: "The Simpsons," "The Atomic Cafe," oddities, "Pulp Fiction," "The Wizard of Oz," funny stuff, and more. And if you're fed up with the lame sound that your E-mail program emits to tell you that you've got new mail, you'll appreciate the "Mail Call" section here that features lots of cool sounds specifically for that purpose. There's also a section on "How to Make Your Own WAVs."

Har's WAV World 
This site offers a nice roundup of free WAV files that are specifically selected to be appropriate for Windows event sounds. That is, when you start up your computer, shut it down, empty your recycle bin, encounter an error, or get new E-mail, you can customize the sounds you hear with these nifty WAVs. They certainly sound better than Windows' lame default sounds!

The Daily WAV 
An impressive site that has been serving up quality WAV files every day since December, 1997. Plenty of sound files from cinema, TV and even commercials for your downloading pleasure. Past selections are archived alphabetically. A quality, well-done site that's among the most popular of its kind.