Tyler Cowen on why blogs should cover some topics randomly.
But with Google and Wikipedia you must choose the topic. A good blog writer can randomize the topic for you, much like a good DJ controls the sequence of the music. Sometimes you might trust us more than you trust other aggregators, but we can't count on that and arguably the other aggregators improve at a rate faster than we do.
The economics posts on Marginal Revolution are often less interesting to me than the supposedly off-topic posts.
