Comment by mkl

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).