CNET: U.K. privacy group wary of Google's Web mail
Privacy International filed a complaint in the U.K. to attempt to spur an investigation into Google's new Gmail service's privacy practices. European privacy laws make a great many information transactions illegal - even some extremely innocuous ones - unless they happen within a jurisdiction covered by E.U.-tailored laws. The U.S. is not such a jurisdiction, and Google's use of email content as an ad targeting factor may well constitute a violation.