- RandomActsOfKindness.org – Stories, videos, research, and more
- Pay it Forward Foundation
- NewtownKindness.org – A mission of kindness in memory of Charlotte Bacon who died tragically at Sandy Hook Elementary School on 12/14/12.
- Lifehack: 29 Ways to Carry Out Random Acts of Kindness Every Day
- KindSpring: Small Acts that Change the World
- Wikipedia: Random Acts of Kindness
- DoSomething.org – Post It Note Campaign
- The Huffington Post: Random Acts of Kindness Stories