St. Petersburg Guide
http://www.petersburg-russia.com/

Online City Map
http://petersburgcity.com/map/index.phtml/z/bbdbcnohmbkh

Plans of City Districts, Parks, Airport, and Theaters
http://www.infoservices.com/stpete/map/

The US Consulate in St. Petersburg
http://stpetersburg.usconsulate.gov/