Have you ever considered contributing to Wikipedia? Some of the volunteers behind the projects introduce the edit button.
View on Commons: http://bit.ly/WP_Com3
Author: Wikimedia Foundation. Video credits: Directed by Jelly Helm, produced by Noah Stanik, shot by DP Reed Harkness, edited by Sarah Marcus. Music by Matt Carey. Production team, Living Colour. Agency partner Fenton Communications.
Freely reusable under the CC-BY-SA 3.0 license or the GNU FDL