The official websites of Mojang and Minecraft are shut down to protest the Stop Online Piracy Act (SOPA). Users are unable to purchase Minecraft or play the browser-based version, but they can play the game if they have the client downloaded. Notch tells PC Gamer:
No sane person can be for SOPA, I don’t know if we’re sane, but we are strongly, uncompromisingly against SOPA, and any similar laws. Sacrificing freedom of speech for the benefit of corporate profit is abominable and disgusting.