United Nations Peacekeeping contains a brief history of peacekeeping, discussion of principles and processes, and overviews of current and past operations.
The Global Centre for the Responsibility to Protect offers research and advocacy materials organized around the Responsibility to Protect norm.
Security Council Report provides reports on the United Nations Security Council, including intervention and peacekeeping.
The New Humanitarian is an independent non-profit news organization that specializes in frontline reporting on humanitarian crisis.
International Peace Institute focuses on conflict prevention and settlement, and has provided training to UN peacekeepers.
New York University Center on International Cooperation has events and publications on conflict, intervention, and peacebuilding.
The Stimson Center’s Peacekeeping Reform project offers research and policy recommendations for improving UN peacekeeping.