Jeff Atwood / Coding Horror:

CAPTCHA is Dead, Long Live CAPTCHA!  —  In November 2007 I called these three CAPTCHA implementations “unbreakable”:  —  2008 is shaping up to be a very bad year indeed for CAPTCHAs:  — Jan 17: InformationWeek reports Yahoo CAPTCHA broken  — Feb 6: Websense reports Hotmail CAPTCHA broken