My top 3 that get the most use are Sirius (car & home) Rhapsody, & a new one I'm very big on is Songza & of course my music library of ripped CD's. They just added 2 more to their extensive list, 8tracks & Batanga. I'll have to check them out. Anyone tried MOG yet? I'm telling ya folks this has opened me up to a whole new world of music I didn't even know existed. I check in on SONOS Labs about once a month to see what's new on their offerings...it just keeps on growing & growing. My appetite for listening to new genre's is steadly increasing. What a blast I'm having.