Cambridge Historical Commission - Established to protect historic buildings in Cambridge, to mark historic sites, to advise owners of historic buildings on preservation issues, and to research and publish information about the architectural history of the City. Cambridge Civic Journal - Journal of civic affairs in the City of Cambridge MA, edited by Robert Winters. City of Cambridge Official Site - Maintained by the Office of the City Manager. Site includes department listings, city demographic information, and frequently asked questions. Cambridge Police Department - Crime reports, analysis, business district map, alerts, and news. Cambridge Municipal Code - Provides access to the general and permanent ordinances and building codes in a searchable and easy to read format. Commonwealth Communities - Cambridge Massachusetts - Information about Cambridge from state agencies.