A few months ago I made an argument for using Blackle because it saves energy. Willy, who appears never to have posted on inner nets, made a comment about his preferred use of Darkoogle.
So it appears that Darkoogle is no longer active because the person behind it was convinced its premise is wrong. The Wikipedia article on Blackle makes note of this controversy and links it to technology inner nets journalist Darren Yates. The test results sound convincing, but unless liquid crystal display monitors function according to pigment color instead of light color (which I find hard to believe), it would make more sense that black consumes less power by emitting less light.
I'm still continuing to use Blackle any time I don't need a specific function of Google like Image Search. Either way, the continued research that came out of this testing process suggests that simply reducing brightness levels from 100% to 70% saves roughly 10W per hour. I've been dimming my screens to around 40%, as a result. Except when I need them brighter, of course.
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