content: No, I don't know of any actual banks that use OAuth*. It's there to help support the point, that there are applications that are not appropriate for OAuth. I'm trying to extend that point to a lot more domains than just banking. Consider there are plenty of apps that have purchasing options that are tied to Facebook. That is, they are financial related. (*I actually used the article as an argument against somebody who was actually intending on using OAuth for a program with actual financial/banking features.)