recaptcha
Google Now Using ReCAPTCHA To Decode Street View Addresses
Have you started seeing images in online <a href="http://www.google.com/recaptcha">reCAPTCHAs</a> that look suspiciously like house numbers pulled from Google Street View? Well, as it turns out, that
Meet Duolingo, Google’s Next Acquisition Target; Learn A Language, Help The Web
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Spell It Out: Co-Founder Of reCAPTCHA Leaves Google For Facebook
<img src="http://tctechcrunch.files.wordpress.com/2010/05/screen-shot-2010-05-03-at-3-54-01-pm.png" alt="" title="Screen shot 2010-05-03 at 3.54.01 PM" class="alignright size-full wp-image-177708" />I
reCAPTCHA: Using Captchas To Digitize Books
Captchas are well known for keeping automated spammers out and letting humans in. However, ReCaptcha is a rather clever service using them to help digitize books scanned into the Internet Archive as w