Are you a K-12 educator? Register for Doodle 4 Google, a competition where students design the Google logo using a theme. The winning student gets a $15,000 college scholarship, $25,000 to the school for new computers, and a chance to have his or her design on the Google.com homepage. Check out www.google.com/doodle4google for official rules and details. Teachers must register their school by March 24, 2010, and all entries are due by March 31, 2010.