Without a doubt, CAPTCHAS and ReCAPTCHAS are a part of our daily life.  Soon Solve Media hopes to turn  CAPTCHAS  into ad dollars by substituting company slogans for the actual random text we normally type.

But chances are you don’t realize that as you are typing in these random words to secure entry to your favorite sites, you are also helping to digitize volumes upon volumes of printed material. Enjoy this video by Luis von Ahn, Carnegie Mellon University; from “Computing Research that Changed the World: Reflections and Perspectives” that explains the history of the service he created.

IMAGE courtesy of the always hilarious GEEK & POKE website