National Register of Historical Places - Berkshire County
- Contains a listing of properties, districts, lodgings and landmarks in the county. Provides architectural style and period of historical significance.
- http://www.nationalregisterofhistoricplaces.com/MA/Berkshire/state.html

Historic Homesteads
- Name, location and brief description of historical sites throughout the Berkshires.
- http://www.berkshireweb.com/plexus/history/histhome.html

Eminent Berkshirites
- Profiles of men and women hailing from the Berkshires who've made their mark on history. List includes Susan B. Anthony, Edith Wharton, Arlo Guthrie, Oliver Wendell Holmes and Herman Melville.
- http://www.berkshireweb.com/plexus/eminent/eminent.html

Mahican History -- First Nations' Histories
- History of the Mahican, a Native American tribe that occupied a region that included Berkshire County.
- http://www.dickshovel.com/Mahican.html

Berkshire County Address Book
- Berkshire County, Massachusetts, directory of town offices and officials, 1998-99.
- http://www.rootsweb.com/~maberksh/directory/index.html

The Berkshire County Historical Society
- Nonprofit organization dedication to the preservation and promotion of the region's history.
- http://www.berkshirehistory.org/