Oh sure they have a fancy economic term for it: Quantitave Easing. But it really means buying up stuff. Where does the money come from? They print it.
I know what you're thinking, you just can't print money like that. Why, that could lead to this or this. But we are in a pretty serous recession here. Inflation is not our problem. Sure, we got to watch things down the line, but at this point Ben Bernanke is more worried about about the trouble right now rather than the trouble to come.
As are we all.