(For a complete list of Beginners posts, see Financial Crisis for Beginners.)
If you want to get caught up on the financial and economic crisis in a hurry (and get a quick refresher on first-year macroeconomics), Charles Jones has a drafted a new chapter on the crisis for his macroeconomics textbook. (If you’ve already read all of our Beginners posts, though, hopefully you won’t need to get caught up.) It’s 43 pages long (not very many words per page, though) and includes a relatively standard account of how the crisis came about (with a focus on the U.S. housing bubble), the impact on the real economy, and the thinking behind monetary policy, the fiscal stimulus, and the main proposals to fix the banking system. (Perhaps wisely, he doesn’t say which proposal – buying toxic assets, recapitalization, or reorganization – he recommends.) There is a discussion of what the crisis looks like in IS-LM terms – the main change from the standard version being the jump in the risk premium, which undermines the Fed’s ability to reduce effective interest rates. He also discusses the “zero bound” on nominal interest rates, in case you were wondering what that meant.
I think there should be a lot more on the crisis outside the U.S., for two reasons: first, it’s hitting harder in most other countries; and second, with so many countries being affected in so many different ways (Eastern Europe bubbles collapsing, China and Japan losing demand for exports, Russia hit by falling commodity prices, Iceland crashing under a hypertrophied banking sector), there would be lots to write about.
Jones even closes with a note of optimism:
Whatever happens in the coming years, it is worth remembering a key fact about the Great Depression, in evidence on the cover of the macroeconomics textbook . . . Even something as earth-shaking as the Great Depression essentially left the long-run GDP of the United States largely unaffected.
Update: I meant, but forgot, to add that Jones does not attempt to address the question of whether macroeconomics as a field needs to be revised in the light of the crisis. Mark Thoma has several posts on this question: a few are here, here, and here.