I’ve outlined a few of the ways that big players like Facebook, Apple, and News Corp are potentially breaking the “small pieces loosely joined” model of the Internet. But perhaps most threatening of all are the natural monopolies created by Web 2.0 network effects.

One of the points I’ve made repeatedly about Web 2.0 is that it is the design of systems that get better the more people use them, and that over time, such systems have a natural tendency towards monopoly.

—O’Reilly