* How do you think social media will affect the development of virtual currencies?
Technologies always diverge, economies always converge. Facebook credits will become an international currency as important (or more important?) than the dollar, euro, or yen.
* Do you think Facebook is ultimately worth its multi-billion-dollar valuation? Groupon?
Yes to Facebook — when you surreptitiously take over Earth’s economy and telecommunications system simultaneously, that’s worth something. Groupon… maybe. What we don’t know yet about Groupon is whether competitors can unseat it. It’s too late to unseat Facebook.