] MP3 4U is a network of music lovers called "sources" who
] search the Internet for MP3s that are available as free
] and legal downloads. When a source finds a song they like,
] they post it on their MP3 4U Page. They also create a song
] card containing a brief reason for the posting and a link to
] download the MP3

Musical Memestreams

MP3 4U - About Us