<![CDATA[recaptcha Resources | ZDNet]]> en-us <![CDATA[Google reCAPTCHA could raise bar in anti-bot, anti-spam battle]]> Wed, 16 Sep 2009 15:19:00 -0700 AMZN GOOG AMZN,GOOG <![CDATA[Google buys reCAPTCHA: Digitize old books and fight spam]]> Wed, 16 Sep 2009 09:50:20 -0700 GOOG GOOG