I can't resist adding a few more...
Santana Lotus
M. Orchestra Between Nothingness and Eternity volumes I, II
J. Hendrix The J. Hendrix Concerts, Albert Hall Experience
Assembly of Dust The Honest Hour
Pentangle Sweet Child
Neil Young Masey Hall, Carnegie Hall 1970
Ry Cooder Show Time
Otis Rush So Many Roads
Bob Dylan (with The Band) Live 1966
Richard Thompson Live From Austin, TX. plus a bunch more live shows available on his website
Dire Straits Live at the BBC
John Prine Live On Tour
Joni Mitchell Archives box sets all include previously unreleased live material
Free Live