Games for Change
This website offers single-player and multi-player games based on social issues such as the environment, civics, and economics.

Generation On
Find how-to instructions for practical projects you can do to make a difference in the world. Projects include animals, bullying, citizenship, education, emergencies, environment, health, homelessness and poverty, hunger, literacy, peace and kindness, senior citizens, and veterans. 

Don’t miss 65 Ways to Make a Difference.

The Harry Potter Alliance
Are you a Harry Potter fan? Encouraging activism and civic engagement, this website describes itself this way:  “We are an army of fans, activists, nerdfighters, teenagers, wizards and muggles dedicated to fighting for social justice with the greatest weapon we have– love.”

Peace Corps for Kids
Designed for students in middle and high school, this interactive game allows you to learn about making a difference as a Peace Corps volunteer.