The world changes today, although non-IT people may not notice. This day, June 6, 2012, will forever be known as IPv6 Launch Day, the moment in high-tech history that major Internet players — Google, Yahoo, Facebook, and major ISPs like AT&T, Comcast, Time Warner Cable, KDDI (Japan), Free Telecom (France), Internode, and XS4ALL (Netherlands) plus companies in more than 100 countries worldwide — officially moved from IPv4 to IPv6, deploying the new protocol permanently.