reCAPTCHA

I first heard about this on NPR the other day. It's about those word verifiers on websites to prove that you are a real person, and how they are being used to correct scanner errors in books that are being digitized. Commenting on Teresa's blog reminded me of this, and I thought I would share. It's quite interesting, at least to me, although I am a HUGE nerd. Here is the NPR story, and here is the reCAPTCHA website.