Humane Society of Calvert County
- Animal rescue organization. Lists available pets. Information on adoption procedures and a list of needed items.
- http://humanesocietyofcalvertcounty.org/

Calvert Animal Welfare League
- Promotes adoptions of unwanted and homeless dogs and cats, in addition to offering educational programs for children. Information on foster needs and spay/neuter programs, volunteer opportunities, and photographs of available pets.
- http://www.cawl.us/

Calvert County Historical Society
- Collects historical data and records concerned with Calvert County and other materials bearing on the history of the State and Nation. Mission, collection summary, and information on the Linden cultural heritage center.
- http://www.calverthistory.org/

Miles Morlock DOTINFO
- Personal comments on business, politics and life.
- http://www.milesmorlock.info/

MDGenWeb: Calvert County
- Affiliated with the MDGenWeb and USGenWeb projects this site provides resources for history and genealogy research.
- http://www.rootsweb.com/~mdcalver/

Wikipedia - Calvert County, Maryland
- Free encyclopedia. History, government, geography, demographics, cities and towns.
- http://en.wikipedia.org/wiki/Calvert_County%2C_Maryland