Not as good as the books, but still entertaining, the Freakonomics blog at the NYTimes offers some little tidbits and insights into the phenomena of our times, in behavioral economic terms. Unfortunately there isn't enough of a Steven Levitt presence and the articles are too short for me to pay attention for long.
Steven Levitt is great - I'm not a huge Stephen Dubner fan, but Steven Levitt, the UChicago behavioral economist is consistently smart and entertaining.