Institute for the Study of War – United States-based think tank founded in 2007 by Kimberly Kagan. ISW describes itself as a non-partisan think tank providing research and analysis regarding issues of defense and foreign affairs.
PoliticalMaps.org searches the web for the latest political maps mostly based on US presidential elections. They primarily feature maps created by others with attributions including a link to the original source.
Aon Empower Results – Political Risk Map 2016: 162 emerging economies including a map examining political risk, considering risk through nine risk icons: exchange transfer, sovereign non-payment, political interference, supply chain disruption, legal & regulatory risk, political violence, risk of doing business, banking sector vulnerability and inability of government to provide stimulus.(access gained through subscriptions)
Electoral Calculus by Martin Baxter on British Politics: featuring a two-dimensional political map (last revised on the 19th of December 2016) using two dimensions, the first one is the traditional left-right economic axis and the second being internationalism versus nationalism.
The politics Of the Map in the Early Twentieth Century by Michael Heffernan, examining the wartime production of maps as aids to geopolitical strategy in three Allied cities with reference to geographical societies in these locations. Derived from Cartography and Geographic Information Science, Vol. 29, No. 3, 2002, pp. 207-226.