I love articles that expose the behind-the-scenes of creating complex graphs. This Wall Street Journal blog post tells us some dirty secrets behind these cartograms that depict the "influence" of different media outlets throughout the world.
(Via Andrew Sullivan; he's dissing NYT again)
Additional links of interest:
Original posting at Paris-based L’Observatoire des Médias blog
Online Journalism Blog (warning: this link is taken over by a rogue script from an advertiser or some other entity that distributes scripts so it wasn't loading when I tried)