People have been writing steam punk for years. What about alternate alternate histories?
What about a world where RSS never got monopolized and grew and morphed instead.
What if telcos couldn't think past telephones and the internet was a mesh of individual connections, wired or wireless. You really felt the distance on sites hosted far away. Techies might have favourite routes.
Or if people distrusted search engines and ran their own. "Yeah, i'm running an early fork of Berkley Search"