Today my boss told me about , Blackle. It is a custom search engine for google and it claims to save energy in the world. It says save a little, but do save. It works on the principle that, a black screen would take less energy when displayed on the monitor in comparison to any other bright color. May be that is true, it also displays the watts of energy it has been saving since the site became active.
Let’s start saving energy from now on :p