Associated with the state of Oklahoma and the College of Arts and Sciences at the University of Oklahoma, this Web site provides a wealth of information on the flora, fauna, and ecological communities found throughout the state. The site offers a variety of databases and literature collections on a variety of subjects including rare species, woody plants, breeding birds, and much more. The site is easy to navigate, and most searches can be executed simply. Some general information on biodiversity and tips on information sources for the non-specialist make this site valuable to a broader audience.