Greenfield Garden Club
- Membership is open to anyone with an interest in gardening. Families are encouraged to join. The club maintains a display garden at Trap Plain in Greenfield and sponsors many community projects including grants to local schools, and public plantings.
- http://dir.gardenweb.com/directory/ggc

Association for Gravestone Studies
- Was founded in 1977 for the purpose of furthering the study and preservation of gravestones. AGS is an international organization with an interest in gravemarkers of all periods.
- http://www.gravestonestudies.org/

Guiding Star Grange #1
- This Grange hall is a haven of contradancing in western MA; a thriving Grange bouyed with the support of the dance and music community.
- http://www.guidingstargrange.org/