Been checking out Radioio's 70s channel via iTunes (although you can stream direct from their site, I believe). Here's a list of what's been played in the last hour or so--kind of like DDT but with somewhat deeper tracks (like the Thin Lizzy or the Dregs cuts):
previously played on radioio70ssm
Neil Young - Drive Back
George Thorogood - Cant Stop Loving
Janis Joplin - Down On Me LIVE
Dixie Dregs - Leprechaun Promenade LIVE
Kinks - Stormy Sky
Thin Lizzy - Warriors
Tom Petty - What Are You Doin In My Life
Enhanculin - Call 800 480 9362
EpiClear - FREE Sample at 800 608 9502
Jeff Beck - Come Dancing
Traffic - Heaven Is In Your Mind
The one catch is they play ads (see the two entries prior to jeff beck above) unless you pop for a Soundpass at $5/mo or $50/yr.
Here's their URL:
http://radioio.com/radioio70s.php#ETA: Aside to Lightnin' Rod--noticed that among their rotating "featured albums" on the search player is none other than Axe Victim, although I haven't heard anything from it yet. Heard Mott the Hoople's Sucker though, which I don't think I'd heard in a good 10 years.