Aswath Damodaran is a Prof of Finance at NYU. He's well known for his book on equity valuation, which is excellent. He also maintains a blog, which unfortunately he doesn't update that often, but when he does, he posts some gems. For example, here is his take on Nassim Taleb's rant about the Nobel prize committee.
As readers will remember, I've posted on Taleb before.
Aswath also posts on QE2 with the memorable title "QE2 or Titanic"