Want to save energy??? Then go for Blackle... It is a non-profit website powered by google custom search, which aims to save energy by displaying a black background color for search results.The basic concept behind Blackle is that monitors can be made to consume less energy by displaying much darker colors. Blackle is based on a study which tested a variety of both the CRT AND LCD monitors . Dispute over whether there really are any energy saving effects.This concept was first brought to the attention by a post in blog, which estimated that Google could save 750.0 MWatt -hours a year by utilizing it for the CRT screens. The Blackle homepage provides a count of the number of MWatt -hours that have supposedly been saved by enabling this concept.