Keeping up with what's happening on the Southern California art scene is not as easy as it used to be. In the last 25 years, existing museums have greatly expanded and new museums have opened, while the number of commercial art galleries has jumped from a few dozen to a few hundred. A few weeks ago, I reported on the small, new, fascinating Wende Museum in Culver City, devoted to the history and culture of the Cold War era in Eastern Europe...