I've finally found a streaming, internet rock radio station that's aimed at my age group. So far...I love it. http://www.grayponytail.com/
Check out KCDX and see if it plays the kind of music you like. It's heavy on 60's, 70's and 80's. KCDX is owned by Ted Tucker, an Arizona grad that has done well in radio. This is his personal station - no DJs or commercials, just a random playlist of music he likes, although he does upload his own specific playlists from time to time, like when he's on vacation. The music is generally referred to as "desert rat rock".