Barry Ritholtz, author of The Big Picture blog (link on the right of this page), and now of Bailout Nation, his new book about the financial mess. I haven't got hold of the book yet, but I plan to. However, Ritholtz put this chart on his blog, that he calls "Anatomy of a Crash", which is from the book. If you can enlarge it enough to read it, it is an interesting time line of the contributions everyone made to the crisis.
Glenn Locke, The Tall Thin Guy