I found this site about two months back. You have to register but its free and they don’t send a lot of garbage to your email. Plus if you are like me you probably have a junk email address. The site is called Wolfgang’s Vault and it an archive of live concerts from the late great music promoter Bill Graham as well as other shows courtesy of King Biscuit.. anyone else remember King Biscuit Flower Hour? Well, back in “the day” I use to tune in to hear that syndicated show on my local station..I think it was around until 2007, but I probably stopped listening around 10 years back…. but some of those great shows are captured here. Unfortunately due lawsuit threats, many shows have been deleted, which is a shame because the quality is fantastic and it is a wonderful glimpse into the last thirty or so years of rock and roll. Still there is a treasure trove of goodies to stream here. From artists like Fleetwood Mac, Jeff Beck, BB King, Eric Clapton, and many more. You can listen to the streams for free and they offer some downloads for purchase.

Link:

Concert Vault