Inspiring view of Earth as seen from the surface of Mars - nice work NASA
Goldacre's bit in today's Guardian is worth a read - a political experiment showing that our prejudices are enhanced rather than diminished by factual corrections in newspaper articles. Bad luck Nazi-Nick.
And on Neuroanthropology.net there's a nice article discussing the effects of negativity in the mainstream media. Thanks Mind Hacks
Finally proving science has all the answers here's a bit of worthwhile research into the relative pros/cons of napping at your desk face down versus the traditional napping while lying prone.