Servers are only going to get cheaper. Programming is only going to get easier. If anything, things like search engines and social networks are going to become more competitive.

If someone has a genius idea for making a better engine, he won't work for google, he'll create his own.

Implicit in this fear of centralization is a kaczynskiist belief that "everything that can be invented has been invented".

People predicted some company taking over everything forever, and in fact even before the web existed sci-fi-authors imagined a centralized network, were from the servers to the software everything is provided by the government. It's never going to happen.