The amount and range of information available to today's students--and indeed to all learners--is unprecedented. Phrases like "the information revolution," "the information (or knowledge) society," and "the knowledge economy" underscore the truism that our society has been transformed by virtually instantaneous access to virtually unlimited information. Thomas Friedman tells us that "The World Is Flat" and that we must devise new political and economic understandings based on the ceaseless communication of information from all corners of the world. The Bush administration tells us that...