• Campbell Collaboration Crime and Justice Group homepage
• Campbell Systematic Reviews – Searchable database of completed and in-progress reviews on crime and justice, social welfare, and education topics
• Templates and policies for producing a Campbell Review
• Expectations and guidance for Campbell Systematic Review authors
• List of free online bibliographic databases
• Don M. Gottfredson Library of Criminal Justice Gray Literature Database (Rutgers University) – Resource for identifying unpublished and hard to find studies
• Peabody Research Institute (Vanderbilt University) – Under the director of Mark Lipsey, this center is dedicated to improving programs for children, youth, and families using rigorous evaluation and research synthesis.
• EPPI-Centre – The Evidence for Policy and Practice Information and Coordinating Centre at the University of London carries out systematic reviews and develops review methodology in social science and public policy.
• Meta-Analysis Unit at the University of Murcia (Spain) – Information and advice on conducting meta-analysis including databases of meta-analytic studies and methodological resources in English and Spanish.
• Centre for Reviews and Dissemination (University of York, UK) – The Center for Reviews and Dissemination undertakes high quality systematic reviews in health and social care.
• Systematic Reviews – A new journal dedicated to the publication of high quality systematic reviews and methodological articles on systematic review and meta-analysis
• CrimeSolutions.gov – A new website from the Office of Justice Programs that uses rigorous research to determine what works in criminal justice, juvenile justice, and crime victim services.