PBS – The Sixties: The Years That Shaped a Generation (http://www.pbs.org/opb/thesixties/topics/culture/index.html)

The Psychedelic ‘60s: Literary Tradition and Social Change, an archive created by the Special Collections Department at the University of Virginia (http://www2.lib.virginia.edu/exhibits/sixties/index.html)

Archive of Protest Buttons from the 1960s (http://lancefuhrer.com/60s_Buttons.htm)

The Counterculture: An archive of photographs from the Smithsonian Institute (http://americanhistory.si.edu/lisalaw/1.htm)