Don River - Toronto
- Revitalizing the Toronto Don river valley by planting trees, creating wetlands, educating the public and creating places to visit.
- http://www.mwilson.on.ca/don.html

Bert Miller Nature Club
- Aims to educate the public and protect the natural resources of the Niagara Peninsula. Includes background information about local conservation and wildlife areas, updates on projects, details of meetings and opportunities to help.
- http://www.bertmillernatureclub.org/

Federation of Ontario Naturalists
- Conservation group for Ontario's wetlands, woodlands, and wildlife. Includes Important Bird Areas project, list of birding festivals, and overview of 16 nature reserves.
- http://www.ontarionature.org/

Glanbrook Conservation Committee
- A group of volunteers working to improve the habitat for wildlife in what was previously Glanbrook Township, but is now the new City of Hamilton.
- http://www.glanbrookconservation.on.ca/

Wolves Ontario
- Seeks protection for wolves in Ontario through public education and mobilization, direct action, advocacy and government lobbying. Ontario wolves are considered little more than vermin with an open season, no bag limits and used of suspended snares for tr
- http://www.wolvesontario.org/wolves/

Partnership for Public Lands - Ontario
- How will "Lands for Life" ensure a healthy ecological future for Ontario and what steps should we take to balance the impact of industrial uses on wild places?
- http://www.web.net/wild

Earthroots
- A grassroots organization in Toronto, focussed on political lobbying and nonviolent direct action in defence of Northern Ontario's ancient forests. News, event listings, action alerts and a CGI allowing you to fax politicians.
- http://www.earthroots.org/