Civil War Round Table of Greater Boston
- Provides education resources of the American Civil War and works to preserve those materials. Based in Waltham.
- http://www.cwrtgb.com/

United for Justice With Peace
- Coalition of groups sponsoring a wide array of events to further the cause of peace. Calendar of vigils and events, mailing list, and community group contacts.
- http://www.justicewithpeace.org/

Symphony of a City
- Public cyberart documentary project designed to create dialogue and reflection about housing and community building in greater Boston. Site includes video.
- http://www.symphonyofacity.org/

Boston's Queer Agenda
- E-mail list of events and classifieds related to lesbian, bisexual, transgender, alternative, women's, and progressive communities. Site includes subscription and volunteer information.
- http://www.queeragenda.org/

Boston Blogs
- Gatherings and activities for Boston-area bloggers and online journal writers.
- http://www.bostonblogs.com/

Craigslist: Boston Online Community
- Non-commercial bulletin board for events, jobs, housing, personal ads, and community discussion.
- http://boston.craigslist.org/