Yesterday, several of us presented at the California Council of Land Trust conference in Sacramento. Member groups of this organization work on land conservation issues, which is a cause near and dear to my heart.
Land trust organizations often use GIS to plan projects and educate donors and the public about their work. Non profits like these have learned that Google Earth and KML are terrific tools for telling stories within a geographic context.
One amazing example shown at the conference depicts a landfill project planned for Petaluma, CA. Opponents of the project used KML to show wetlands that surround at the controversial landfill site. You can see additional examples at GreenInfo Network.