Mashups for EJ

I'm definitely interested in learning more about the ability of mashups to forward the social change agenda. Our organization provides technical assistance to social change community-based organizations, especially those working in environmental justice. There is a ton of data available, for example through Scorecard.org, the EPA, and the Right-to-know network. It would be interesting to see the different ways to reconfigure this data. Scorecard.org does this already in one way, but mashups, i think, could offer another way to go about doing it.