So, for example, I like early blues and delta blues so I might start a new station called "Robert Johnson". The station will return with not only songs by him but others with similar musical characteristics, and not necessarily the same genre. This exposes me to totally different possibilities and I can find artists that I had no idea even existed. There is a thumbs up, thumbs down choice with each song. By using this option I can guide Pandora as to what I like and don't like. The station then is continually evolving and expanding my listening choice. I will however do some comparisons with other Internet Radio and post any new results. It is nice to have music choices and the internet certainly has that.