A look at the "Semantic Web", which many people are calling the next major step in the evolution of the World Wide Web, making the Web much more intelligent and much more responsive to user needs than it is today. Host Martin Wasserman interviews well known Silicon Valley technology visionary and entrepreneur Nova Spivack, a leader in the development of the Semantic Web, whose latest product, twine.com, is an early example of it. Silicon Valley entrepreneur Jack Porter also participates.