Having read the recent post about using reCAPTCHA, our friends over at twtitw sent over this breaking news: Google acquires reCAPTCHA. Google is going to put reCAPTCHA word deciphering foo towards helping digitize books going into Google's Books project (aka GB) .
Doing some digging around, I turned up an existing side discussion about GB that I thought was interesting. Have a read if you're the type who likes reading books and is interested in their metadata. Be sure to drop down to a comment from a GB employee.