I really like the MINT Blog.
I've also referred to their blog before when they picked out key comments from Homer Simpson on finance. My favourite still has to be: “When you gave me that money, you said I wouldn’t have to repay it until the future. This isn’t the future. It’s the lousy, stinking now!”
They've done it again this week with another great blog entry with graphics.
MINT's graphics explain complex stuff in a simple way, and this one that shows how the world's currencies have been affected by the crisis this year (doubleclick image to see larger version):
A graphical picture well worth using in future presentations.