Which countries practice dictatorship?

Currently (August 2012) Cuba and North Korea are both dictatorships, although both profess to be communist/socialist. Many countries in the Middle East prior to January 2011 also had de facto dictatorships (generally the ruler was referred to as a monarch) that were kept in power by the military and a select group of elite and wealthy families. The Arab Spring of 2011 has swept a number of these individuals out of power (Tunisia, Egypt, Libya) and several others had to make serious concessions to the general population to stay in power.