Summer/Fall of '66 was, I think, the last throes of the real "pre-publicity" nature of Haight Asbury. Since I didn't return after my departure in the late fall of '66, I'll defer to your remembrances of the following years.
At the end of the summer of ‘67 the word went out that the city was no longer cool and that everyone should head to the hills and many did. A lot of old hippies are still in the Ben Lomond Santa Cruz area (at least the non-politicals). Committed politicals got drawn off to Berkeley.
Remember the Berkeley Barb and the Oracle?