Supreme Judicial Court Historical Society
- Papers and objects relating to justices of Massachusetts courts.
- http://www.sjchs-history.org/

A Tour of the Massachusetts State House
- An online tour of the Massachusetts State House.
- http://www.mass.gov/statehouse/

Mass Moments
- A daily almanac of the people, places, and stories that made state history.
- http://www.massmoments.org

American Local History Network: Massachusetts
- State history and genealogy information.
- http://www.usgennet.org/usa/ma/state/

History of Massachusetts
- Overview of events which shaped the state, from early European exploration to post-World War II.
- http://www.usgennet.org/family/bliss/rehoboth/mahistory.htm

A Tour of Massachusetts History and Trivia
- Information on original inhabitants, notable events, presidents, state official symbols, schools and universities, and other subject areas.
- http://www.masshome.com/tour.html

WPA Life Histories from Massachusetts
- Over one hundred titles of first-person accounts of life in the state during the Great Depression.
- http://lcweb2.loc.gov/wpaintro/macat.html

Col. Bailey's 2nd Massachusetts Regiment
- Nonprofit organization whose purpose is to interpret the lives of the soldiers and women of the Continental Army in the American Revolutionary War.
- http://www.2ndmass.org/

The Adams Papers
- Collection of the Massachusetts Historical Society comprised of over a quarter million manuscript pages of the letters and diaries of generations of John and Abigail Adams.
- http://masshist.org/adams.html