Bill Goffe's Resources For Economists on the Internet is a comprehensive listing of economics-related sites.
Al Roth has a number of interesting surveys of experimental economics and related topics on his Game Theory and Experimental Economics page.
I've been fortunate to work with a number of outstanding students. This year Yuichi Yamamoto is finishing his degree.
Check out Theoretical Economics, a new open-access journal with high standards and phenomenal turn-around times!
Here is an essay I wrote for the NSF on "predictive game theory."