accessTunes

From Zelek Software:

accessTunes allows you to play your iTunes music through any web browser like Internet Explorer, Safari, or Firefox. You can even play your music through media players like iTunes or Windows Media Player on other computers.
How exactly does this work? We're glad you asked! First, run the accessTunes program from the computer that stores your iTunes music. Next, you will get a special web address that you can use in any web browser on any computer. After entering the address in the web browser, you will see all of your music and playlists and be able to play them right from the website! You can even download a special file from the website that will let you remotely play your music in other media players like iTunes and Windows Media Player. From the living room, office, hotel, Internet cafe, library, or any other location ... Access Your Music. Anytime. Anywhere.