Blackle Is a website powered by Google Custom Search, which was developed by Heap Media Australia.



The principle behind Blackle is based on the fact that the display of different colors consumes different amounts of energy on computer monitors. The creators of Blackle cite a 2002 study from Roberson, who tested a variety of CRT and LCD monitors and found that an all black screen consumed less energy than an all white screen on all of them.

http://en.wikipedia.org/wiki/Blackle.com

On the other hand, black writing on white background is easier to read so perhaps the energy saved by the computer requires more energy from the person who needs to use it

There are around 18 different versions of black google online. The best one Ive found is www.cleanblack.com. Cleanblack is the only version that allows you to change the text colors of the google search results. Try it yourself by going to www.cleanblack.com/theme/