Mitkof Portal
- Online forum.
- http://www.mitkof.org/

Petersburg Rotary Club
- Internationally and community projects, photos, services, and contact information.
- http://www.petersburgrotary.org/

The Clausen Museum
- General information, location and directions, shop, events, and kids page.
- http://www.clausenmuseum.net/

Petersburg Humane Association
- Promotes animal welfare, publicizes local pets needing homes, fosters homeless pets, and encourages responsible pet guardianship. Includes information about volunteer opportunities, memorials, and membership application.
- http://petersburghumane.org/