» 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/

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

» 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

» 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/