Ecofont - Same text, less ink...

That text in the image is a typeface called Ecofont, so named because it conserves ink by not printing the tiny white circles you can see inside the letters. According to the designers, printing with this font consumes up to 20% less ink than normal fonts. And since this is done by smartly removing the "inner" areas of the letters, the text remains just as readable - not like other ink-saving methods such as "graying" the text, or using thinner-line font. Since conservation so often requires sacrifice of convenience or usability, it's good to see a design that doesn't!
[via Lifehacker]