Sample tweet: "Bernie Madoff believes that he's a good person. Yes, Bernie, that makes you a sociopath."
This Reuters journalist runs one of the best business blogs in the business-blog business intelligent, thoughtful and fun. On his Twitter feed, Felix Salmon takes on other journalists and makes insightful observations about the economy and major business stories. His tweets about the economics of journalism may not be that relevant for general readers, but his well-chosen retweets of other economic commentators make Salmon's feed worth following.