If you do go to the site, make sure you DON'T read the live comment crawl. Unfortunately, because the stream is now so popular, here are trolls showing up and posting REALLY foul junk. Just click on the screen expansion icon on the bottom of the video screen, and it will go to full screen view, which is better anyway :)
3/19/10 - Updated:
Here's a nice article about the couple who set up the owl box, and subsequent web-cam in their back yard.