The P-G's Techman, Ced Kurtz, and webmaster Jody Farr blog about technology.
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Google has purchased ReCAPTCHA Inc., the CMU spinoff that is behind those distorted images used in Web site security. Story here from the CMU site.
Those Captcha things are fine as long as they're vaguely readable - some of them are impossible to make out and it's not unheard of to use up 3 or 4 attempts to read it. Essential tool nonetheless.