I will be going to my 40 year high school reunion next month. The summer of 1967 is featured in the current issue of Rolling Stone magazine. Their list of the top 40 albums from 1967 illustrates the significance of that year. I did not catch up with that scene until ten years later.
Click this link to read about each album and access a larger image starting with the Doors.
Several articles also describe The legacy of 1967.