The best-known of the protests today, Wikipedia has gone completely black. It's not impossible to access--Google around if you want to figure out how to overcome the block--but it's arguably the most major resource that's unavailable today. The only pages you can access? SOPA and PIPA.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.