xmlhack: P3P deployment guide

The W3C has published "a guide to help site operators deploy the Platform for Privacy Preferences (P3P) on their site" as a W3C note.

The document includes practical advice for people managing web sites:

This guide is intended for Web site administrators and owners. You can use it whether you operate your own Web server (or many of them), or are responsible for some pages on a server someone else operates. You should have some familiarity with publishing content (HTML files, images, etc.) to a Web server, but do not need to be an expert at configuring and operating Web servers. You also don't need to be a P3P expert.

A large part of the note is dedicated to comparing the three methods allowing P3P clients to locate P3P documents (using a "well-known location", through a HTTP header or a link element in the pages). An "appendix contains information on how to add HTTP response-headers for some popular Web servers".