Value Chains Come and Go

The PC era came into an end when open took over. Dell, IBM, Microsoft all had market power. And then Open Source + white boxes came along.
Now decentralization is driving innovation. No one owns web 2.0. Small teams of 5 or 7 create, and then mash ups and with the alternative business models available, you don’t need to make much money to be viable.
Web 2.0 will be over when someone gets control.
Who will that be? What will it look like?
It’s the ultimate evolution of the value chain.