www.limewire.com I use this for my individual song downloads... It is also a torrent client..meaning it will download torrent files that you find...Limewire is also a form of P2P (peer to peer) sharing..meaning if people are online and have that song you can just download direct from them...Lime wire has a cool search built into it where you can search album, artist, song yada yada....best of all it is free...no need to download limewire pro
