Today's New York Times carries a brief article worth reading called Design That Solves Problems for the World's Poor. While many social entrepreneurs take traditional businesses and use them for social benefit, some, like the man profiled in this article, actually invent new ways of doing things. Dr. Paul Polak, who runs an organization that helps rural farmers around the world, explains his focus on design for the world's poorest citizens: "All of the people who design things in the world spend all their time designing things for the richest 10 percent of people in the world." There's also a nifty video called "Tools for Better Living" where you can see some of the inventions. And you can see them in person if you visit the Cooper-Hewitt Museum in Manhattan.