2) I think I've flash-learned a lot about the process now (of which I knew little before). I'm really interested in disruptive uses of digital social systems, so taking advantage of online vendors might be something I'll actually look into for a future research project.
3) Random thought: Given the increase in algorithms that weigh prices against other sellers (and the obvious examples I linked to in the piece) I wonder what the potential is for mom-and-pop businesses to employ their own algorithms... or at least what the conflicts are when you have small businesses with different levels of technical skills and access to those sorts of advantages. Is that a new business competency that's necessary if you're a small business looking to work within these systems?