I was stumbling via stumbleupon on the university links when i landed on the website of Carneggie Mellon University’s project that kicked Spam’s ass by a very big number called the CAPTCHA.

For those of you who’re not sure about CAPTCHA, the official CAPTCHA site defines it as “a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot. For example, humans can read distorted text as the one shown below, but current computer programs can’t.”

Its a handy and useful tool though, you might wanna read more about it on the CAPTCHA site.