Check it out Google has turned the lights out and gone black, but it is only for today it seems. Apparently it is all in a good cause: Earth Hour which invites people around the world to switch off their lights for an hour during the course of Saturday 29th March. That hour is between 8pm and 9pm in whatever your local time zone is.
"Given our company's commitment to environmental awareness and energy efficiency, we strongly support the Earth Hour campaign, and have darkened our homepage today to help spread awareness of what we hope will be a highly successful global event" a Google spokesperson said.