I checked out Pioneers of Change--I like the cross-generational aspects of how you approach issues. Our site is a cross-generational social networking site with a bit different focus at www.spangy.com. We provide a free of charge advertising to organizations like yours to spread the message in a viral way. We use contemporary content and images to keep people engaged. The site is owned by me and I operate by myself for now, so not nearly as cool as wiserearth.org but we have many of the same capabilities albeit designed differently. Please check us out and share with your friends. Hope to see your pic on the front page. Also, we would be glad to place your logo with a direct link to your site and include in our upcoming e-newsletter. Our membership is 45% international and 55% US. The thrust for us is to garner a more global audience from the start.