"Mega Super Mammoth MP3 Blog List"
I just discovered a site that includes a "MEGA SUPER MAMMOTH MP3 BLOG LIST".
The site is: gravybread.wordpress.com (you'll have to cut and paste the link--sorry). When you get to the site, simply click on the list at the top of the home page.
It's an alphabetical list of hundreds of blogs that upload mp3s of anything you can imagine. For instance, one I'm excited about has Edison cylinders of the first recorded music, etc that you can download. What's great about this list is that there are details of the kind of stuff that's available given for each blog, so you can easily find what you're looking for, or just discover what's out there. This is a great resource, so I thought I'd pass it on. Enjoy!