Illustration: Jack GallagherWhere are the users? That's what popular websites including Yahoo, Google and Facebook are asking the Internet engineering community when they are questioned about their long-range plans to deploy IPv6.
These popular websites -- and tens of thousands of others -- participated in a successful, 24-hour trial of IPv6 on June 8 dubbed World IPv6 Day. Sponsored by the Internet Society, World IPv6 Day was a large-scale experiment designed to test the readiness of IPv6 to
