This Wall Street Journal commentary makes the interesting claim that Putin's Russia is essentially run like the mob: part oligarchy and part feudal society. Some quotes:
Mr. Putin's government is unique in history. This Kremlin is part oligarchy, with a small, tightly connected gang of wealthy rulers. It is partly a feudal system, broken down into semi-autonomous fiefdoms in which payments are collected from the serfs, who have no rights. Over this there is a democratic coat of paint, just thick enough to gain entry into the G-8 and keep the oligarchy's money safe in Western banks.
If you are in a real hurry to become an expert on the Russian government, you may prefer the DVD section, where you can find Mr. Puzo's works on film. "The Godfather" trilogy is a good place to start, but do not leave out "The Last Don," "Omerta" and "The Sicilian."
It's a fascinating read, and, incredibly, makes a bit of sense.