Another classic element is dystopia, oppressive societies, fascist dictators, overly powerful corporations, etc. The world is generally in social decay. Often, the setting is Earth in the present and not too distance future. Societal critique is often present, linking this genre to social sci-fi. The prophesied futures tend to be on the paranoid side, our worst fears about where technology may lead us.
Neuromancer - William Gibson
The Matrix Series - Wochowski brothers
Do Androids Dream of Electric Sheep (AKA Blade Runner) - Philip K. Dick