Columbia Volunteer Fire Department Inc.
- Roster of officers and information on meetings.
- http://www.columbiafire5.com/

Saxton B. Little Free Library
- Features an overview, services, policies, a staff directory, information about the Friends of the Library, and events.
- http://www.columbiactlibrary.org/

Columbia Town Green
- Photo and brief description provided by TownGreens.com.
- http://www.towngreens.com/greenlink/index.cgi/view/29

Horace W. Porter School
- Curriculum, student activities, administration and staff.
- http://www.hwporter.org/

Columbia Legislators
- Names with contact information for state and federal elected officials that represent residents of the town.
- http://www.columbiact.org/Legislators.htm

Town of Columbia
- Municipal news and information, including town services, calendar and resources.
- http://www.columbiact.org/

Apgar Photography
- Wedding, portrait and immersive photography in the north San Francisco Bay area.
- http://www.apgarphoto.com/