1. Cite a community that you enjoy.
2. Summarize its purpose and parameters.
3. Invite your audience to join the community and/or reply with their favorite communities.
Today's featured community is:
This community offers news and discussion about sustainable living, green building, and other Earth-friendly activities. It's a good resource for people interested in shrinking their footprint. The tone is usually upbeat, focused on what you can do to help or what cool projects somebody else is doing.