I also enthusiastically recommend the Blues Project, thanks to Al for the link to the anthology, as my Projections album is in awful condition. Danny Kalb remains one of my favorite guitarists of all time. Also, any Byrds or Yardbirds (look at the guitarists they had in their group--Beck, Clapton and Page, as I recall) albums. Tim Buckley's Hello Goodbye album and Tom Rush's albums in the folk-rock genre. All of the Pentangle's albums are worth getting (especially for John Renbourne's guitar work). And Vanilla Fudge's album is worth it just for their rendition of the Supremes' hit You Keep Me Hangin' On.
The old timers give the young'ns tips on the 60s.
I love the music of the 60s...it was such a magic time musically. Unfortunately I wasn't born yet. Of course, we young'ns know about the greats....CSN, Jefferson Airplane The Doors, Neil Young, CCR, the obvious ones...but it took me awhile to find Moby Grape, Richie Havens or Nick Drake. How about some tips of some great sixities music that somehow has dropped off the radar.