Marc Canter writes at Always-On about how to make money with digital lifestyle aggregators and Doc follows it up by tying it to his "IT as Construction Industry" metaphor. Good. Part I is the nuts and bolts. Mark's promising to show how to make money in Part II. I'll give you a preview: read what Clayton Christensen said at OSBC or listen to it for yourself. The money is always at the aggregation point. The modular parts become commodities.