Counting down a year of social change on YouTube

The year 2009 was a terrific year for social change on YouTube thanks to the videos you created, which featured everything from unemployed porcupines to hospital workers shimmying in pink gloves. Some videos urged the community to donate through call-to-action overlays (upwards of $30,000 in one day!) while others "scared" citizens into doing good. It was a hard selection process, but here are the videos that surprised, moved, and inspired us most this year: