I found out how easy it is to find links to mp3 files on the Internet using Google. Simple search for "index of" and then the name of the song or album. I did a search for Enya to see if anyone had some mp3 files on their website of that. Searching for "index of Enya mp3" I found many results. I was able to download many of the Enya songs just from links found by Google.

Firefox has a plugin/addon called Foxy Tunes that can be downloaded. This program finds links to mp3 files on a page and displays a play symbol by them if they can be played. Foxy Tunes allows mp3 files to be played in firefox.

To see a link to a website with mp3 files check out http://mp3.shareshows.com

There is a website that uses Google to search for music use http://g2p.org/. This website will put the necessary info in the Google search. Just search for the song.