Rule 19
- Progressively-focused group provides reviews of media, suggestions for grassroots outreach, calendar of local actions and meetings, links to related groups, and message board.
- http://rule19.org

Massachusetts Public Interest Research Group (MassPIRG)
- Non-profit, non-partisan research and advocacy group proposing liberal solutions working on behalf of consumers, the environment, and good government.
- http://www.masspirg.org/

Massachusetts Budget and Policy Center
- Provides independent research and analysis of state budget and tax policies, as well as economic issues, that affect low-and moderate-income people in Massachusetts.
- http://www.massbudget.org/

Massachusetts Peace Action
- An leftish anti-war, anti-nuclear organization working for peace and democracy
- http://www.masspeaceaction.org/

Massachusetts Gay and Lesbian Political Caucus
- Pro-gay rights advocacy organization.
- http://www.mglpc.org/

Committee for Health Care for Massachusetts
- A statewide effort to ensure affordable, comprehensive and equitably financed health insurance for all state residents. Signup and FAQ.
- http://healthcareformass.org/

Massachusetts Cannabis Reform Coalition
- Working to legalizae marijuana in state.
- http://www.masscann.org/

Massachusetts Voters for Clean Elections
- Non-partisan citizen group working to reduce the influence of private money in the electoral process. Includes a description of the reform, FAQ, news, and how to get involved.
- http://www.massvoters.org/

¿Oíste?
- Organization working to build an educated and participatory electoral base of Latinos. Includes a list of programs, calendar of events, and job opportunities. [English, Espanol]
- http://www.oiste.net/

League of Women Voters of Massachusetts
- Group and voting information, videos of voting mechanisms by town, and membership information.
- http://lwvma.org/

The Social Work Image Campaign
- Aims to unite professional social workers and elevate their perception. Includes mailing list and campaign information.
- http://www.socialworkimage.org/

Massachusetts Audubon Society
- Seeks protection of land and wildlife habitat, conducts nature education and advocates for environmental policies. Largest conservation organization in New England
- http://www.massaudubon.org/

GOAL: Gun Owners' Action League
- Gun rights organization in Massachusetts. State affiliate of the National Rifle Association
- http://www.goal.org/