"Small Changes" by Marge Piercy (set in 60s and early 70s) - published in
"Vida" by Marge Piercy (set in mid-60s through late 70s) - published in 1973
Both of these involve (some) communal living, friendships, & growing feminist consciousness; some radical politics. -published in 1980
"Drop City" by T. Coraghessan Boyle - a bunch of hippies move from a communal space in Sonoma to Alaska - kind of amusing, but rather cynical. Published in 2004.
Ella Price's journal - set in the mid-60s, a housewife takes college classes and begins to change
"Kaaterskill Falls" by Allegra Goodman - set in the years 1976-1978, mostly among residents (mostly summer) of a resort town in the Catskills. No hippies, mostly Orthodox Jews. Some characters make appearances in other of Goodman's work (for example, Cecil Birnbaum & his wife Beatrix Kahan)