Commenters - take note!
I have added a CAPTCHA, or Completely Automated Public Turing test for Telling Computers and Humans Apart. The goal - prevent software-based comment spam by requiring people posting comments to type in a short string from a picture on the web. Since a computer can't "read" the picture, comment span will disappear.
Hopefully, you don't mind too much. Sorry if it's a pain. :-(