Atlantic Council’s Cyber Statecraft Initiative http://www.atlanticcouncil.org/programs/brent-scowcroft-center/cyber-statecraft provides excellent analysis of cyberpower issues and their impact on national security, statecraft, and international politics.

The Citizen Lab https://citizenlab.ca/ is hosted by the Munk School of Global Affairs at the University of Toronto and is an innovative outfit standing at the intersection of digital media, global security, and human rights. The Citizen Lab has helped produce a series of reports that have, among other things, uncovered an alleged Chinese cyber espionage ring and exposed the sale of Internet filtering technologies by Western corporations to authoritarian regimes.

Cyberwarzone http://cyberwarzone.com is a useful site for news and analysis on nation-state cyber-attacks and criminal and terrorist uses of cyberspace.

Army Cyber Institute http://cyber.army.mil/ is a useful resource for the latest military thinking on cyber issues and war.

Krypt3ia http://krypt3ia.wordpress.com is a thoughtful and detailed blog on cyber security and warfare.