This is similar to CAPTCHAs being used to scan books. Smart idea. Wouldn't be su... | Hacker News

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		majimojo on Oct 5, 2007 \| parent \| context \| favorite \| on: Startup Vidoop Has A Plan To Monetize User Logins This is similar to CAPTCHAs being used to scan books. Smart idea. Wouldn't be surprised if that's where it got its inspiration.

joshwa on Oct 5, 2007 | [–]

or hotcaptcha or petcaptcha...

http://www.hotcaptcha.com/

http://research.microsoft.com/asirra/

vlad on Oct 5, 2007 | [–]

I had the same thought.

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