(courtesy of a citation in Frederick Buell's book From Apocalypse to Way of Life: Environmental Crisis in the American Century NY: Routledge, 2003--special thanks to Derek Owens for recommending I read it)
Sharon Beder citing Lifelong Learning Systems marketing of educational materials to corporations:
Now you can enter the classroom through custom-made learning materials created with your specific marketing objectives in mind. ... Coming from school, all these materials carry an extra measure of credibility that gives your message added weight. ... Imagine millions of students discussing your products in class. Imagine their teachers presenting your organization's point of view.
Beder, Sahron. Global Spin. (White River Junction, VT: Chelsea Green Publishing, 1997: 166-167.