San Francisco Mime Troupe

http://www.sfmt.org/schedule/index.shtml

Stern Grove Music Festival

http://www.sterngrove.org/

Free Shakespeare in the park (San Francisco Shakespeare Festival)

http://www.sfshakes.org/park/index.html

San Francisco Aloha Festival

http://www.pica-org.org/AlohaFest/index.html

Pistahan Filipino Festival

http://www.pistahan.net/

Hal Lutsky's Vintage Paper Fair

http://www.postal-history.com/Lutsky.html

Critical Mass Bike Ride (begins at east end of Market St on the last Friday of the month at about 6pm)

http://critical-mass.info/