| policyalmanac.org | Almanac of Policy Issues: National Security |
| g2mil.com | G2mil Military Research Portal |
| europeansecurity.net | European Security.net |
| dcaf.ch | Geneva Centre for the Democratic Control of Armed Forces (DCAF) |
| csbaonline.org | Center for Strategic and Budgetary Assessments |
| cdi.org | Center for Defense Information (CDI) |
| calvert-henderson.com | Calvert-Henderson Quality of Life Indicators - National Security |
| basicint.org | British American Security Information Council (BASIC) |
| umich.edu | Cow: Correlates Of War Project |
| defence-data.com | Defence Systems Daily |
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