The Prairie Enthusiasts
- Dedicated to the inventory, promotion, restoration, and protection of natural prairies in the Upper Midwest. Includes conference information, discussion area, news articles, and information about prairie flora and fauna.
- http://www.theprairieenthusiasts.org/

Save the Prairie Society
- Sponsors tours and activities as an educational service, land acquisition, volunteer land management to protect prairie.
- http://savetheprairiesociety.org/

Friends of the Prairie Learning Center
- Neal Smith National Wildlife Refuge. Largest re-creation of the tallgrass prairie ecosystem in the U.S. Also environmental education.
- http://www.tallgrass.org/

Grand Prairie Friends
- Illinois nonprofit agency committed to protecting tallgrass prairie.
- http://www.prairienet.org/gpf/

Tallgrass Prairie National Preserve (NPT)
- A "Prairie Partnership" between National Park Trust (NPT) and National Park Service (NPS)to preserve Tallgrass Prairie.
- http://www.parktrust.org/zbar.html