I have read numerous writers and bloggers claiming the coming of Web 2.0, and even Web 3.0. I don't remember anyone, actually involved in building the "World Wide Web", declaring a version one.
The Internet is about services being served by servers. Whether acting as a remote datastore (html, images, xml, etc.) or providing access to interactive processes via server scripts and cgi, it has always been this way. Maybe I'm just to old to really "get it".