AT&T Privacy Minder

Implemented in Java as client-side proxy
Designed to work with any web browser
Source code distributed under open source license
http://www.research.att.com/projects/p3p/pm/

screen dump of the AT&T P3P proxy

Site uses P3P
Site uses cookies
Site has a privacy seal
User can select from a menu of privacy settings with Descriptions
User can click to get privacy policy of site