David Horvitz seems like a really neat fellow.
In 2008 he took a photograph of the sky every day and emailed them out to a list of subscribers. The sky photos are from around the world, and he will send them to you at cost if you are interested in having a look at them. You can also do what I did, which is download the zip of all the images to your computer. His project for 2009 is equally unusual.
This image is the one for June 2nd, 2008 (New York). I'll let you guess what that date is.