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By mswatcher
via sitepoint.com
Submitted: May 10 2014 / 08:32

CAPTCHAs (Completely Automated Public Turing Test To Tell Computers and Humans Apart) are a nightmare for any usability expert but if we want to reduce spam, we do need them or something else in place. While there are numerous CAPTCHA alternatives (or less known CAPTCHA varieties), you could arg
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