Online Music Services

I was going to do a review on the Online Music Services, including subscription music, "Music To Go" and straight download services. However someone has already done this:
Here's a blog, which reviews Music Subscription Services:
TechCrunch

PC Magazine also did a review "Subscriptions for a Song"

Still, here is my take on the services I've tried so far:
Rhapsody Online is one of the most expensive Online Services (for downloading Subscription Music). But they were offering a 30-day free trial. To use their service you have to download their software. Its actually quite easy to use, and I had no problems downloading Subscription tracks to a Sandisk Sansa as well as an iRiver H10. They have a wide selection of music, and when you view an artist they list other similar artists. This works quite well. Some groups and tracks are for purchase only.

Then I tried AOL Music Service. My initial impressions were not good, especially compared to Rhapsody. Although this is supposed to have a web-only interface, you still have to install the AOL Music Download Utility. The Web interface to AOL Music is pathetically slow, even on a broadband collection. otherwise, they have a fairly good selection of music, although you are left on your own regarding similar artists.