On corporate law and governance, check out the new Corporation Law and Economics, with occasional discussions of wine as well. Stephen Bainbridge, main blogger, is professor of law at UCLA.
I also learned of a blog on neuroeconomics. Neuroeconomics is a new “movement,” I would define it as trying to better understand economic choice by looking inside the individual brain. Neuroeconomists take the Austrian economists literally in viewing choice as a process. My colleagues Kevin McCabe and Dan Houser are central to this research, they spend much of their time with brain scanners, trying to see which parts of the brain are used for which kinds of economic decisions. Neuroeconomics is a new field, and spans the disciplines, which makes a blog especially useful.