I call the use of Web 2.0 for business purposes, both internal and customer-facing, Enterprise Web 2.0. At its core, Web 2.0 is about harnessing collective intelligence and most of the rest of the Web 2.0 ideas fall out from this concept. And that highlights a monumental difference between the way the Web was used in the past - and indeed is still largely used today - and the way it works best.

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