Mitch Trachtenberg writes "Ballot Browser, an open source Python program developed by Mitch Trachtenberg (yours truly) as part of the all-volunteer Humboldt County Election Transparency Project, was instrumental in revealing that Diebold counting software had dropped 197 ballots from Humboldt County, California's official election results. Despite a top-to-bottom review by the California Secretary of State's office, it appears that Diebold had not informed that office of the four-year-old bug. The Transparency Project has sites at humetp.org and http://www.humtp.com." Trachtenberg also points to his blog for the Transparency Project, and his own essay about the discovery and the process that led to it.