Themes of the 60s Counterculture

In class, Soren began to comment on 3 to 4 themes from the 60s counterculture that influenced (some might say underpinned) contemporary online interaction. We only got two of them out:

Self Expression and Self Discovery
Refusal to Be Part of the Mass

Would anyone be willing to expand on the other themes or propose their ideas on the other 1 or 2 major themes from t he counterculture?