Here are the books I have used to learn about how platform-based multi-sided markets work, and how they are managed. They are helping me to see that such a market structure is a natural basis for a new economy of consumer-built applications.

     The next two slides illustrate two platform-based two-sided markets. The first is familiar: credit cards. The second is the application-building market I'll be proposing here.

How Can a Web Platform be the Foundation of this Economy?