What a smart idea! Make good out of these annoying captcha boxes

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If you don’t know what CAPTCHA means, just go to any website that requires some sort of registration - those little boxes with letters and numbers that you have to type? That’s captcha.

reCAPTCHA figured out a way to make something good of this really annoying anti-spam feature, that most website like to implement, instead of just hiring more people to filter the spam. They simply replace those images from random letters to specific words from books that were scanned. This way, instead of just bothering us, we also help digitizing books.

You can read more about this idea on Read/Write Web.

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