I think Web2.0 was when many things started going super-linear. 1 customer isn't just another customer, they are more SEO, more content, more "Likes", more net

I think Web2.0 was when many things started going super-linear. 1 customer isn't just another customer, they are more SEO, more content, more "Likes", more network effect. It's also about standardization (which is also kind of super-linear) - if you code to a standard interface, you no longer need to code to every interface. I'm not such a fan of AJAX. You can make a punch-the-monkey game in AJAX, and it's just web 1.0 all over again. You could be something like Facebook with little more than static HTML. AJAX is a tool, not a revolution. It's a good tool, but that's it. The same goes for NoSQL servers.