Tilting Windmills

Social media don't just help ignite collaboration and innovation for social change. Sometimes, their ability to spread word of a single person or idea from a remote part of the world can help to keep either alive. Consider the oft-told story of William Kamkwamba, a Malawi youth who, at 14, built a windmill for his family after seeing a picture of one in an old textbook. Now 20, Kamkwamba is still building windmills, and he's planning to build a larger one for his village.

This short video about him, below, was shown at last week's Feast conference on social innovation in Manhattan. So far, it has gotten over a million hits on YouTube and other Web networks, and the attention it has brought Kamkwamba continues to change his life. According to the Wall Street Journal, a group of investors who met Kamkwamba at the TED conference last year are now putting him through school so he can make good on his desire to build more windmills for other villages across his country. Here's his story:

Girls, Uninterrupted

If you haven't seen it yet, check out this video, below. It's called The Girl Effect, and it is a video and Web site produced by the Nike Foundation, in partnership with Peter Buffett's NoVo Foundation, to show the positive impact of educating and empowering girls. Shown at The Feast social innovation conference today in Manhattan, the video is one of the more powerful cause "message" campaigns making the rounds of social networks and video-sharing sites: