I've been postponing this post for a while, but here it is. It just couldn't get any easier then this: Twitter business model isn't as different as many others: if you can in touch with million of people, that is in fact a business model per se. Where Twitter innovated was on the risk management - they did play mostly with no net.
This isn't really something we didn't know about, it is just fun to watch. The question is: now that Twitter has been injected $15.000.000, can we finally start demanding better service? Or did we just get used to be complacent with Twitters's outages?