Read The Diamond Age afterward. It's not exactly a sequel, but all indications seem to show that it takes place in the same world, a couple decades later.
Approx 80-100 years according to Wikipedia [1]. Though no source is cited.
The world of Snow Crash, where a few corporations own the entire world with a very tiny government, is also the basis of the book Jennifer Government [2] by Max Barry.
I found that book a bit easier to read. Diamond Age, I can't get through it yet. Cryptonomicon, also by Neil Stephenson is on my list, as well as Neuromancer by Gibson.
