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At first glance, this evolution might seem to be simply a shift in agency, from publication by a few to collective contribution by many. But in fact, the implications of Web 2.0 go much deeper: the tacit epistemologies that underlie its activities differ dramatically from what I will call here the “Classical” perspective—the historic views of knowledge, expertise, and learning on which formal education is based.

In contrast, the Web 2.0 definition of “knowledge” is collective agreement about a description that may combine facts with other dimensions of human experience, such as opinions, values, and spiritual beliefs. As an illustration, the Wikipedia entry on “social effect of evolutionary theory” wrestles with constructing a point of view that most readers would consider reasonable, accurate, and unbiased without derogating religious precepts some might hold. In contrast to articles in the Encyclopedia Britannica, Wikipedia articles are either undisputed (tacitly considered accurate) or disputed (still resolving through collective argumentation), and Wikipedia articles cover topics that are not central to academic disciplines or to a wide audience (e.g., the cartoon dog Scooby-Doo).

I can say without hesitation that all my traditional educational experiences combined, everything from grade school to grad school, have not taught me as much about learning and being a learner as blogging has. My ability to easily consume other people's ideas, share my own in return, and communicate with other educators around the world has led me to dozens of smart, passionate teachers from whom I learn every day. It's also led me to technologies and techniques that leverage this newfound network in ways that look nothing like what's happening in traditional classrooms.

In many schools and even states, it's been, rather, a movement to block and bust: no blogs, no cell phones, no IM. We take away the powerful social technologies our kids are already using to learn and, in doing so, tell them their own tools are irrelevant. Or, instead of using the complex and challenging phenomenon of a site such as Wikipedia to teach the realities of navigating information in this new world, we prohibit its use. In fact, at this writing, the U.S. legislature is in the process of deciding whether schools and libraries should have access to any of the potential of the Read/Write Web at all. When you read this, blogs and wikis and podcasts (and much more) may be things that students (and teachers) can access and create only from off-campus.

I wonder whether, twenty-five or fifty years from now, when four or five billion people are connecting online, the real story of these times won't be the more global tests and transformations these technologies offered. How, as educators and learners, did we respond? Did we embrace the potentials of a connected, collaborative world and put our creative imaginations to work to reenvision our classrooms? Did we use these new tools to develop passionate, fearless, lifelong learners? Did we ourselves become those learners?

The "7 Things You Should Know About..." series from the EDUCAUSE Learning Initiative (ELI) provides concise information on emerging learning technologies. Each brief focuses on a single technology and describes what it is, where it is going, and why it matters to teaching and learning. Use these briefs for a no-jargon, quick overview of a topic and share them with time-pressed colleagues.