The latest on the President at the G20:
News Analysis - Obama’s Star Turn at Summit Gets Mixed Results - NYTimes.com
World Leaders Pledge $1.1 Trillion to Tackle Crisis
Read China’s Dollar Trap to get an idea why China is calling for a new global currency standard.
A bit about the Bancor Currency (an alternate idea from Keynes) as a standard for the globe. Joseph Stiglitz also wrote about it at length in his book Making Globalization Work.