The final session for today is opened by economist John Quiggin from the University of Queensland. He notes the increasing importance of the Internet as a focus of innovation, since about 1980 (previously, it was transport which drove innovation). Most of the innovations it brought about, however, were pioneered outside the market sector - they were done in the background of the main economy (think for example of blogs and wikis).
Innovations on networks are naturally non-rival, and excludability (restrictions to people's access) is problematic as exclusion undermines the network itself (as AOL has found - ultimately it was unable to restrict its users from accessing the wider network, and vice versa). Similar exclusions in online newspapers (such as the New York Times Website) are also ultimately counterproductive.