SAN FRANCISCO, CA - AUGUST 30: People watch as Zendesk works on computers at the new Zendesk office on August 30, 2011 in San Francisco, California. San Francisco mayor Ed Lee officially opened the offices of Zendesk, a provider of cloud-based help desk software, is the first business to open on San Francisco's Central Market district since the adoption of the Central Market and Tenderloin Area payroll tax exclusion. (Photo by Justin Sullivan/Getty Images)
Photograph by Justin Sullivan — Getty Images