The term "Web 2.0" refers to what some people see as a second phase of development of the World Wide Web...
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However, a consensus upon its exact meaning has not yet been reached. Skeptics argue that the term is essentially meaningless, or that it means whatever its proponents decide that they want it to mean in order to convince the media and investors that they are creating something fundamentally new, rather than continuing to develop and use well-established technologies.