See Arthur Wood's reviews in FolkWax of the new books on folk rock history - Arthur is a good writer and it's a great site.
I saw Dylan in Jan, 66 in Chicago - the first half of the concert was acoustic and the place was packed, at intermission, they rolled out the electric instruments and 80% of the audience left. I stayed, but it was not very good folk or rock. I don't know if there was media coveraqe of all this - it is hard to beleive that there were so many dedicated folk fans, unless it was just the faddish thing to do to leave - like the interest in folk music in the first place.
Chris