http://en.wikipedia.org/wiki/San_Francisco,_California

http://www.ci.sf.ca.us/

http://sanfrancisco.citysearch.com/

http://www.onlyinsanfrancisco.com/

http://www.sfgov.org/site/port_index.asp

http://www.hotels-rates.com/San_Francisco/CA/usa/

http://travel.yahoo.com/p-travelguide-191501889-san_francisco_vacations-i

http://www.meetup.com/cities/us/ca/san_francisco/

http://sanfrancisco.going.com/

http://www.intellicast.com/Local/Weather.aspx?location=USCA0987