> The term "Web 2.0" was coined by Darcy DiNucci, an information architecture consultant, in her January 1999 article "Fragmented Future" [...] her "2.0" designation refers to the next version of the Web that does not directly relate to the term's current use.
> The term Web 2.0 did not resurface until 2002.
Google's first big Web 2.0 products were GMail (beta launched in 2004, just before Google's IPO) and Google Maps (2005).
Right, but the term and the concept didn't really take off until years later. From https://en.wikipedia.org/wiki/Web_2.0:
> The term "Web 2.0" was coined by Darcy DiNucci, an information architecture consultant, in her January 1999 article "Fragmented Future" [...] her "2.0" designation refers to the next version of the Web that does not directly relate to the term's current use.
> The term Web 2.0 did not resurface until 2002.
Google's first big Web 2.0 products were GMail (beta launched in 2004, just before Google's IPO) and Google Maps (2005).