What does "Web 2.0" mean?

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For those who don't know what it means.


Web 2.0, a phrase coined by O'Reilly Media in 2004,[1] refers to a perceived or proposed second generation of Web-based services—such as social networking sites, wikis, communication tools, and folksonomies—that emphasize online collaboration and sharing among users. O'Reilly Media, in collaboration with MediaLive International, used the phrase as a title for a series of conferences, and since 2004 some technicians and marketers have adopted the catch-phrase. Its exact meaning remains open to debate, and some experts, notably Tim Berners Lee, have questioned whether the term has meaning.[2]

The last, compact, definition of Web 2.0, according to Tim O'Reilly is this one:

"Web 2.0 is the business revolution in the computer industry caused by the move to the internet as platform, and an attempt to understand the rules for success on that new platform. Chief among those rules is this: Build applications that harness network effects to get better the more people use them. (This is what I've elsewhere called 'harnessing collective intelligence.')".

Source/More info: http://en.wikipedia.org/wiki/Web_2.0

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I noticed that you answered a lot of "older" threads here, the item "what means web 2.0" is discussed before (I think more than one times).

please search the forum before you start this kind of general threads.

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