In early November I was back in Silicon Valley to attend the annual Web 2.0 Conference, now renamed Web 2.0 Summit, and with the theme of “Disruption & Opportunity.” The name change was because the organizers, O’Reilly Media and John Battelle, were expanding and had added a companion trade show, Web 2.0 Expo, that was to launch the following year. It was a sign of the times: by November 2006 lots of business opportunities were opening up in the Web 2.0 ecosystem.