After a year and a half of running reCAPTCHA, we finally had time to start a blog.
Perhaps the best way to begin is with a run-down of our milestones: The media has noticed us with coverage in NPR, the Wall Street Journal, the Boston Globe, the Guardian, Wired, and hundreds of other outlets; we published a paper in the journal Science about the accuracy of the reCAPTCHA transcriptions; over 75,000 Web sites have signed up to use our service (including some household names like Facebook, Ticketmaster and Craigslist), and to this day over 300 million people (more than 5% of the world's population!) have helped us digitize content from the New York Times and the Internet Archive. So far, close to 5 billion words have been served.
Needless to say, we're a bit overworked here :)