Mix networks are the basis of some remailers and are the conceptual ancestor to modern anonymous web browsing tools like Tor (based on onion routing).
anonymous | Alcoholics Anonymous | Narcotics Anonymous | Anonymous | Artists Anonymous | Daydream Anonymous | Anonymous post | Mainz Anonymous | Anonymous (group) | Hedgehoppers Anonymous | Gamblers Anonymous | Anonymous work | anonymous work | Anonymous remailer | Anonymous (film) | Anonymous (band) | Anonymous 4 | The Norman Anonymous | Parents Anonymous | Overeaters Anonymous | Birds Anonymous | Anonymous Was a Woman | Anonymous. ''Portrait of Avidia Plautia''. Ca. 136-138. New Haven, Connecticut, Yale University Art Gallery | Anonymous (Group) |
Several of the main alternatives to P3P include using web browsers' privacy mode, anonymous e-mailers and anonymous proxy servers.