[Update] What is "Blackle"?
Blackle is a website powered by Google Custom Search and was created by Heap Media. Blackle is a power saving search engine. Blackle saves energy because the screen is predominantly black, which aims to save energy by displaying a black background and using grayish-white font color for search results. Blackle has claimed to have saved over 2,500,000 watt hours, although this claim is under dispute.