Broadcast Your Cause
Founded in 1995, the Rainbow Network is a Christian ministry working in rural Nicaragua with some of the poorest people in the world. They focus on four areas: healthcare, education, housing, and micro-loans.
In order to further awareness of their mission and highlight some of their work, they've developed a YouTube Channel where they post several related video.
Seems small, but channels like this one exemplify the far-reaching uses of Web 2.0 that are being use to benefit non-widely known foundations.

