Teaching critical thinking skills is often endorsed as a means to help students develop their abilities to navigate the complex world in which people live and, in addition, as a way to help students succeed in school. Over the past few years, this author explored the idea of teaching critical thinking using the World Wide Web (WWW). She began in-depth research on the topic to understand what critical thinking entails and the potential for art educators to use the WWW to help their students develop critical thinking skills. This article begins with a review of the history of critical thinking and some current ideas on the topic. Then, the author explains her working description of critical thinking and how critical thinking is currently articulated in discussions of the WWW in schools. She concludes with ideas for teachers related to developing critical thinking in art classrooms using the WWW. (Contains 1 figure and 3 endnotes.)