Bio of Keynes at the Concise Encyclopedia of Economics

“Keynesian Economics.” By Alan Blinder at the Concise Encyclopedia of Economics

New Keynesian Economics ,” by N. Gregory Mankiw at the Concise Encyclopedia of Economics

Fazzari on Keynesian Economics (EconTalk podcast)

“A Penny Saved May Not Be a Penny Earned: Thinking Hard About Saving and the Creation of Wealth,” by Steve Fazzari, April, 2007.

The Economic Consequences of the Peace (in its entirety, no charge)

Rauchway on the Great Depression and the New Deal (EconTalk podcast)

Democracy in Deficit: The Political Legacy of Lord Keynes by James M. Buchanan and Richard E. Wagner (in its entirety, no charge)

"Liquidity Trap" at wikipedia.com

"How I Became a Keynesian: Second Thoughts in the Middle of a Crisis," by Richard Posner. The New Republic, September 23, 2009

Robert Skidelsky's home page (Keynes biographer, includes many essays and speeches on Keynes (and Hayek)

"What to Do," by Paul Krugman, New York Review of Books, Volume 55, Number 20 · December 18, 2008

Bio of Hayek at the Concise Encyclopedia of Economics

“Austrian School of Economics,” by Peter Boettke at the Concise Encyclopedia of Economics

Economics as a Coordination Problem: The Contributions  of Friedrich A. Hayek by Gerald O’Driscoll (in its entirety, no charge)

"The Pretence of Knowledge," Hayek's Nobel Prize Lecture

The Foundations of Modern Austrian Economics,  edited by Edwin G. Dolan

Time and Money: The Macroeconomics of Capital Structure by Roger Garrison (includes introduction and opening chapters)

Two Macroeconomic Frameworks: A Graphical Exposition, a powerpoint presentation on Keynes and Hayek by Roger Garrison

Boettke on the Austrian Perspective on Business Cycles and Monetary Policy (EconTalk podcast)

Higgs on the Great Depression (EconTalk podcast)

“The Use of Knowledge in Society,” by F.A. Hayek in the American Economic Review