EDIT: Isa, oddly i was listening to both the Incredible String Band and Traffic last week, and had also just come across an old Tubes CD (i'm trying to turn all my CD's that are here to MP3's before i disappear again). One or two of the others are sadly unknown to me though
It's not surprising that some are unknown. You will be very hard pressed to find Crow. They were a band out of Minneapolis and around from 1967-1972. Dave Wagner (the 1st vocalist) does a killer blues version of (The Everly Brother's) Gone, Gone, Gone. Shawn Phillips, from Texas, has been around since the 60s and still performing. His "Bright White" album (1973) is my favorite. He's worked with Clapton and Donovan, among others. Goose Creek Symphony - well, that's an acquired taste and good stuff. If you like Incredible String Band, you might like Goose Creek. Their "Words of Earnest" album (1972) is still the best - especially "Rush on Love". "Dillard, Hartford, Dillard" - the Harford is John Hartford and the Dillards were a family group who were semi-regulars on the Andy Griffith Show a long time ago. Both The Dillards and Hartford were big in the folk music movement and then Hartford teamed up with Glenn Campbell for awhile. My favorite on the D-H-D album is "Two Hits And The Joint Turned Brown". Don't tell me you don't know Ten Years After...
I like your idea for the encyclopedia or dictionary. Can I change my answer to that as far as books are concerned? The encyclopedia reminds me of Ursula Andress in "Dr. No":
Bond: "I suppose you went to school somewhere?"
Honey: "I didn't need to, we had an encyclopedia. I started at A when I was eight, now I've reached T. I bet I know a lot more things than you do!"