Have a look at reCAPTCHA: http://www.captcha.net/ The words shown come directly ... | Hacker News

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nreece on Aug 2, 2007 | parent | context | favorite | on: an idea for a start-up

Have a look at reCAPTCHA: http://www.captcha.net/

The words shown come directly from old books that are being digitized. So you can stop spam and help digitize books at the same time.

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