Mary Hendrickson is associate director of the Community Food Systems and Sustainable Agriculture Program at the University of Missouri.

The Sustainable Agriculture Research and Education Program at the University of California-Davis provides research and education about agriculture and food systems. It posts a page explaining what sustainable agriculture is and what issues are involved.

Ferd Hoefner is policy director of the National Sustainable Agriculture Coalition, an alliance of several organizations.

Rob Hedberg is director of the Sustainable Agriculture Research & Education program, which is part of the U.S. Department of Agriculture’s Cooperative State Research, Education and Extension Service. It promotes farming systems that are “profitable, environmentally sound and good for communities through a nationwide research and education grants program.”

After Florida ruled its voucher program unconstitutional, families and students must find other schools or new funding while opponents of school vouchers celebrate their victory.

Florida lawmakers will decide whether or not to expand the state’s school voucher plan.

The Roper Center for Public Opinion Research at the University of Connecticut is one of the world’s leading archives of social science data, specializing in data from surveys of public opinion.

An article describing the Supreme Court of Florida’s decision that schools vouchers violated the state’s constitution because states have a duty to educate students in public schools.

American National Election Studies produces high quality data from its own surveys on voting, public opinion, and political participation.