Energy Used by Google Search

Ever wonder how much energy is used for a Google Search? Here’s an interesting comparison:

http://nextround.net/upcoming/thumbs/2010/05/12/How-Much-Energy-Is-Used-In-a-Google-Search-full.jpg

Armed with this information, how much energy do you personally consume? What about other online services? Will this cause you to think differently about how you use online services?