From a blog post by Glen Hiemstra.

As we move beyond Web 2.0 into an ever more interactive network, in which users send as much material as they consume, via social nets and video sites, and so on, it becomes obvious that we are progressing from the Internet through the Web to the Stream. It is the constant flow of information that matters. (When Sonia Sotomayor is nominated to the Supreme Court, within about 90 seconds her bio on Wikipedia has been updated.) No static website or traditional media company can keep pace.

Interesting that point about the Supreme Court nomination.