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reCAPTCHA: Stop Spam, Read Books

reCAPTCHA is one of those services most people have encountered at least once. It is used to protect websites from bot abuses and spam by making you type a distorted image which you need to decipher. The cool part is that those distorted words are parts of books that need to be digitized but cannot be read properly by machines, leaving you to the task while fighting against spam. Way to go, hero! 


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