Oxford Companion to Comparative Politics
"The Companion focuses on the major theories, concepts, and conclusions that define the field, analyzing the similarities and differences between political units. Entries cover such topics as failed states, grand strategies, soft power, capital punishment, gender and politics, and totalitarianism, as well as countries such as China and Afghanistan. There are also entries on comparativists who have influenced the field in significant ways, and politicians whose administrations have shaped the evaluation of contrasting governments."
Armed Conflict Database
"The Armed Conflict Database (ACD) monitors armed conflicts worldwide, focusing on political, military and humanitarian trends in current conflicts, whether they are local rebellions, long-term insurgencies, civil wars or inter-state conflicts. In addition to the comprehensive historical background for each conflict, the weekly timelines and the monthly updates, the statistics, data and reports in the ACD date back to 1997."