Activities for All:
- Google Earth as a tool for highlighting and visualizing environmental issues - http://david.tryse.net/googleearth/
Activities for Kids:
- EcoKids - http://www.ecokids.ca/pub/index.cfm
- Elf Island Virtual World - http://www.elfisland.com/
Resources for Teachers:
- Classroom Earth - http://www.classroomearth.org/