[BC] Online sound question...

[Blaine Thompson]

I have an eight-and-a-half-minute MP3 file.  No, there's no commercials with songs <g>.

I wish to post it online and have people hear it.  The file is pure audio with no video.

What's my best and/or least expensive choice of websites?  

Not an option: Putting it on my own dot com and letting people hear or download it from there.

Thanks for your help, oh trust of craniums.

- Blaine