BBC Radio 4 aired an interesting program about the work of the American economist Hyman Minsky, whose work has gained new prominence since the financial crisis. Click here to listen to it.
A quick check of google trends confirms his renaissance. I think it's fairly remarkable that interest surges basically as soon the crisis started in August 2007. Not sure what the third peak is in September 2009, perhaps 2 year anniversary articles being written about the crash.