I'm a fan of this listener-supported Jazz station, which is a service of the Foundation to Advance Jazz, and listen daily. The music is of the laid-back variety, great for early mornings/late nights and I've discovered a lot of beautiful music listening to this station. Among the recent changes to their site are the new Premium and Premium + options, which include flac streaming! All of the new Premium features are free until July 20th if you care to check them out. I'm now a Premium + subscriber.
The Jazz Groove