In 1999 Russ Davis began working in satellite radio as the programmer and presenter for XM 72 Beyond Jazz, the world's only complete modern jazz channel. This was my primary source for finding out about new artists. I first heard Jaga Jazzist and Landau Orchestra on his radio station, along with a lot of other stuff that most people wouldn't even know how to categorize - and that's what I loved the most about it.
XM decided to drop Beyond Jazz and since then, Russ along with Michelle Sammartino (another programmer and presenter for Beyond Jazz) have created MOJARadio - hopefully the new place to access some great music. Check it out.