Williamson and Ostrom Win Nobel In Economics

The announcement just came in - The Nobel Prize in Economics (actually the Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel, to be precise) was awarded jointly to Elinor Ostrom (for her work on usage of common goods) and to Oliver Williamson (for his work on business as means of mitigating transactions costs). While I'm familiar with Williamson's work, I'm not with Ostrom's - so it looks like some reading is in order..
Click here for a list of past laureates.
In somewhat surprising related news, Obama was not awarded the prize (neither was Michael Moore or Timothy Geithner).