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: Since July 2004, the Controller's Office's City Services Auditor (CSA) Division has worked with the Department of Public Works (DPW) to develop maintenance standards for streets and sidewalks and schedules and inspect for compliance. This data file consolidates street and sidewalk inspection results since FY07. You can also access the file at "Inspection Results Data" section of
Agency Name: Controller's Office & Department of Public Works
Date Released: August 26, 2011
Time Period: Since FY07
Frequency: Monthly
Location of dataset:
Format: Excel
Location of Data Dictionary:

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.