iTunes - www.itunes.com

Needs no introduction, it's the number one juke box and music download store worldwide. Now that the iTunes Music Store offers more than 2,000 music videos and select TV shows along with 2 million songs (and counting), instant gratification looks better than ever. To help people share their newfound joy, iTunes adds customer reviews, personalized recommendations and new gift options. Music lovers can create MP3 libraries, burn CDs, and download music to their iPod.

Napster - www.napster.com

Users can: - Listen to their choice of over 1,000,000 songs as often as they want; - Download an unlimited amount of music to listen to offline; - Keep all the music they download for as long as they want to be a member; - Enjoy 40+ advert-free, interactive radio stations or create their own; - Download music from 45 years of the Official UK Album & Singles Charts; - Purchase music to keep forever, burn to CD or transfer to a compatible player. It's advertised in every Windows Media Player on earth!

Rhapsody - www.rhapsody.com

Real Networks has a digital music service called Rhapsody which lets customers buy digital downloads as well as stream digital music directly from their site. Each time a Rhapsody Non-Subscribing Customer permanently downloads your songs or albums, you get a payment. When a Rhapsody Subscriber or Rhapsody Trial Subscriber permanently downloads, you also get a payment, but a fraction less. When a Rhapsody Subscriber streams or "tethered downloads" your songs or albums, you get a payment.

eMusic - www.emusic.com

eMusic is a service that lets people download music (no streaming is offered) on a pre-buy model. eMusic's customers sign up at one of three different pre-buy rates which sets how many songs they can download each month. eMusic currently offers: eMusic Basic, 40 songs per month for $10, eMusic Plus, 65 songs per month for $14.99, eMusic Premium, 90 songs per month for $19.99. Once an eMusic customer signs up, they have one month to download any 40, 65 or 90 songs they want. At the end of the month, any songs not downloaded expire.