Royal Pingdom reports that the buzzwords "Web 2.0" and "Web 3.0" among others have peaked and are declining. This is consistent with my findings last spring that Web 3.0 peaked in October 2007. Josh Catone even argues that Web 2.0 has died altogether.
Buzzwords still increasing in popularity according to Royal Pingdom include "Crowdsourcing", "Microblogging", "Social media" and "Social network".

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