"Pew Internet and American Life Project released a six-page analysis of Web 2.0, attempting to define, exactly, what types of Internet applications the phrase covers. The end result: like porn, we know Web 2.0 when we see it; and Web 2.0 has been here since Web 1.0.
Mary Madden and Susannah Fox, the authors of the report (PDF), referred to the phrase as "a catch-all buzzword that people use to describe a wide range of online activities and applications."
Readers are reassured that it is most certainly okay "if you've heard the term and nodded in recognition, without having the faintest idea of what it really means."
This of course, makes the report a tutorial for those just tuning in."
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