links for 2009-07-29

• Regulator Weighs Limits on Some Energy Trades - NYTimes.com
• The Mysterious Downfall of the Neandertals - Scientific American
• Health Care Reform and the Unpopular T-Word - NYTimes.com
• Health Insurance Exchanges: A Key to Reform's Success - Ezra Klein
• General Relativity Surprise: "Swimming" in Spacetime - Scientific American
• An Interview with Kenneth Arrow, Part One - Conor Clarke
• Primer on Central Bank Independence - Mostly Economics
• Felix Salmon - links
• Marginal Revolution - links
• Brad DeLong - links
• naked capitalism - links
• New Deal 2.0 - links
• FT Alphaville - links
• Paul Kedrosky - links
• Abnormal Returns - links
• The Big Picture - links
• Matthew Yglesias - links