Upcoming events: 
Festival of Sail SF - 7/24 -7/27
 
14th Annual North Beach Jazz Festival - 7/20 - 7/29
 
Up Your Alley fair - 7/27
 
ARTiques - 7/31
The 14th Annual San Francisco Aloha Festival - 8/2 - 8/3
 
35th Annual Nihonmachi Street Fair - 8/9 - 8/10
 
Sausalito Art Festival - 8/29 - 9/1
 
Ongoing Events: 
Movie Night in the Park - every second Thursday of the month
 
San Francisco Film Society
 
Stern Grove Summer Series
 
Yerba Buena Summer Concert Series
 
Birding Walk
 
Urban Composting
 
Union Square Events
 
Ghiradelli Square Events
 
Friday: 
Festival of Sail SF - 7/24 -7/27
Ft. Mason, 10 am - 6 pm
 
A Salute to Legendary Miss Mitzi Gaynor
Castro Theater, 6 pm
www.ticketweb.com
 
Relaxation in Asana Through Use of Props
Iyengar Yoga Institute of San Francisco, 1 - 4 pm
http://iyisf.org/workshops/summer.htm#relaxation
 
SFFS Screen presents: Wonderful Town
Sundance Kabuki, 12 pm
http://www.sffs.org/
 
8th Annual International Bicycle Film Fest
Victoria theater, 7 - 9 pm
http://bicyclefilmfestival.com/2008_site/sf/
 
Saturday: 
Film Night in the Park: The Breakfast Club
Dolores Park, 8:30 pm
http://www.sfntf.org/
 
Conscious Fashionistas - Thrift Couture Shopping Party
Go for a Loop Gallery, 7 pm
http://www.consciousfashionistas.com/
 
Sports Basement Bike Commuter-cation Day
Sports Basement - Potrero - 12 noon
www.sportsbasement.com
 
Indonesian Day
Union Square, 11 am - 4 pm
http://www.indonesiandaysf.com/
 
Bernadette Peters at Books Inc in the Castro
Books, Inc, 2 pm
http://booksinc.net/NASApp/store/IndexJsp;jsessionid=bacSJ1vVSwiE95h0a7lRr?s=storeevents
 
The Guardsmen Endless Summer Party - Charity
Ft Mason, 5 pm - 1 am
http://www.thealist.org/calendar/index.asp?calendarID=4775
 
Local Designers Sidewalk Sale
isso san francisco, 11 am - 5 pm
http://www.issosf.com/
 
FREE North Beach Jazz Fest "Ladies in the Park" All Day @ Washington Square Park
Washington Square, 12 pm - 7 pm
http://www.sunsettickets.com/images/nbjazz/
 
midnight mass presents: starrbooty with rupaul charles live in person! AND the 2nd annual hooker pride parade!
Bridge Theater, 11:45 pm
http://www.peacheschrist.com/
 
Festival of Sail SF - 7/24 -7/27
Ft. Mason, 10 am - 6 pm
 
Healthy Meals in Minutes
Williams Sonoma, 12 pm
www.dininginsf.com
Northern California Cactus and Succulent Association Show and Sale
SF County Fair Building, 9 am - 5 pm
http://www.sfgate.com/listings/event.php?events,e254310
Sunday: 
Up Your Alley Street Fair -
see web site for details
 
San Francisco Theater Festival
YBCC, 11 am
http://www.sftheaterfestival.org/
 
Yogapalooza
Peacock Meadows, 11 am - 5 pm
http://www.yogapalooza08.org/
 
School of Rock Benefit -- Rock School Prom at the W Hotel
W Hotel, 1 pm
http://www.rsartsfoundation.org/
 
Indie Mart Street Festival hits Potrero & Thee Parkside
thee Parkside, 12 pm
http://www.indie-mart.com/
 
Arlequin Wine Merchant Hosts San Francisco Winemakers
Arlequin Wine Merchant, 1 pm
http://www.arlequinwinemerchant.com/
 
Festival of Sail SF - 7/24 -7/27
Ft. Mason, 10 am - 6 pm
 
SF County Fair Building, 9 am - 5 pm
 
SF Indoor Garden Expo
Ft Mason, 12 pm - 5 pm
www.indoorgardenexpo.com