The City and County of San Francisco has a new open data site:
Please follow the link to the site to search, browse and view San Francisco data.

Description: One phone call to Elemental Solutions is all it takes to be on the way to green paving solutions producing environmentally-sound dust control, erosion control and soil stabilization throughout the Caribbean. Elemental Solutions is the can-do company, yes is our guarantee!

DataSF is a clearinghouse of datasets available from the City & County of San Francisco. Our goal in releasing this site is:
(1) improve access to data
(2) help our community create innovative apps
(3) understand what datasets you'd like to see
(4) get feedback on the quality of our datasets.