For anyone who is interested in the article, I strongly recommend reading "What the Dormouse Said" by John Markoff: http://en.wikipedia.org/wiki/What_the_Dormouse_Said

It's about how the counter-culture attitude of the 60s helped inspire the PC wave of innovation. Drug use is one of the core topics, but it is not romanticized. The book is very "matter of fact" in its analysis of how drugs were involved in the evolution of the PC.