W3C:

2005-07-05: The P3P Specification Working Group has released an updated Working Draft of the Platform for Privacy Preferences 1.1 (P3P 1.1). P3P simplifies and automates the process of reading Web site privacy policies, promoting trust and confidence in the Web. Version 1.1 has new extension and binding mechanisms based on suggestions from W3C workshops and the privacy community. The draft also includes all errata for P3P 1.0. Read about privacy and P3P. (News archive)