And don’t forget all the weirdness in Laurel Canyon.
This is Dave McGowan's Laurel Canyon history. It tends to wander a bit, but makes quite a few connections, especially about the fact that many of the Laurel Canyon bands were children of people in military intelligence (Jackson Browne, Jim Morrison, for example.)
The Strange but Mostly True Story of Laurel Canyon and the Birth of the Hippie Generation
Another good read is Tom Wolfe's The Electric Kool-Aid Acid Test, which covers Ken Kesey (author, One Flew Over the Cuckoo's Nest), Jerry Garcia and the Grateful Dead and the psychedelic drugs of the sixties.
Old Joke:
What does a Grateful Dead fan say after the heroin wears off?
"Man, those guys suck."