Going through some older bookmarks, I re-discovered this little gem created by Ben Mautner of Wider Angle:

Population One: One Pixel is One Person

While I’m ordinarily not a fan of web pages requiring horizontal scrolling, I found this to be a terrific application for an otherwise frustrating task. In fact, in this case, I found the very act of scrolling (…and scrolling…) to the right to be integral to the delivery of the message. For me, it helped convey the enormity of 6.5 billion – the Earth’s population (current estimate, U.S. Census Bureau).

A simple, yet unique design, providing a powerful and humbling experience…and a reminder to make the most of my pixel.