Butterflies of Cuyahoga County
- Presents photos and species accounts of butterflies found within the county.
- http://www.butterfliesandmoths.org/map?dc=5400&_dcc=1&si=36

Environmental Health Watch
- Contains information about local environmental problems and resources.
- http://www.ehw.org/

Cuyahoga County Environmental Data
- Environmental information for developers.
- http://cuyahoga.osu.edu/

Friends of Big Creek
- Group works to protect, conserve, enhance, and improve the waterway and watershed of this Cuyahoga River tributary.
- http://www.friendsofbigcreek.org/

Cuyahoga River Remedial Action Plan
- Plans and promotes the restoration the Cuyahoga River through environmental condition improvements and pollution prevention.
- http://www.cuyahogariverrap.org/

Cuyahoga Valley
- Group seeks to influence development patterns, construction practices and industrial processes using an approach based on the integration of economic, social and ecological systems.
- http://www.cuyahogavalley.net/

Cuyahoga Soil and Water Conservation District
- Agency responsible for protecting the natural resources within the county provides local leadership, education and technical assistance.
- http://www.cuyahogaswcd.org/

Cuyahoga County Skywarn
- Receives and passes ground truth weather reports from a network of trained volunteer severe weather spotters anytime there exists a watch or warning that affects Cuyahoga or adjacent counties.
- http://www.ccsw.us/

Cuyahoga Astronomical Association
- Amateur astronomy club providing group overview, membership details, and contact details.
- http://www.astras-stargate.com/caadoc.htm

Cuyahoga County Solid Waste District
- Serves as a guide to the solid waste management and recycling services in the county.
- http://www.cuyahogaswd.org/