The Recycling Exchange
- Coupons, daily prices, and directions.
- http://www.recyclingexchange.net/

Bugman Educational Entoprises
- Provides hands-on bugs educational experiences for all ages in central Ohio.
- http://www.bugs.org/

Columbus Audubon Society
- Promotes the appreciation, understanding, and conservation of birds, wildlife, and their habitats. Includes meeting and activity calendar, member details, and checklist.
- http://www.columbusaudubon.org/

360 Water Inc.
- Supplies products and services for waste water treatment facilities. Interactive tour, information on products, and news.
- http://www.360water.com/

The Columbus Astronomical Society
- Central Ohio organization dedicated to the amateur study of astronomy. Includes meeting information and newsletter.
- http://www.the-cas.org/

Friends of the Lower Olentangy Watershed
- FLOW is dedicated to promoting responsible policies and uses of the Olentangy River.
- http://olentangywatershed.org