This is pretty neat, reCAPTCHA offers a service so you can force people to solve a CAPTCHA before they can see your e-mail address. This way, programs that scour the internet for e-mail addresses to spam can't get it nearly as easily. On top of that, every time, somebody solves the CAPTCHA, they're helping to digitize old books!
For example, mine is: c...@gmail.com
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