There are many meta search engines for free MP3 files, but none for commercial MP3s. I created MP3 Store Guide which profiles more than 30 MP3 stores and includes a meta search feature.
On the topic of music search engines, here are excerpts from our recent court hearing:
MP3tunes Attorney: 'It's fairly extraordinary that in 2009, the record business is still trying to shut down a search engine. Sideload.com is a search engine. It is like Google. You don't download anything using Sideload. All it does is post links, the same way that Google does.'
The Court: 'Do you [EMI] agree that if the plaintiffs distribute music for free on the Internet, the fact that those songs are somewhere on MP3tunes' site is not infringement?' EMI Attorney: 'I think it still is infringement.'
If Sideload is infringing, then Google is too, since they link to millions of MP3 files. Anyone who uses a search engine should care about this outcome.
--MR
