Today Google is kicking off its third installment of Doodle for Google, a yearly nationwide art contest for students in grades K-12. Eligible students can submit their own "Google Doodles," and the winning Doodle will appear on Google's homepage for one day. Plus the winner and his or her school will receive money and scholarships. The theme for this year's competition is "If I Could Do Anything, I Would..." and the idea is to encourage kids to think about the future, dream big and push the limits.

The official Doodle 4 Google website has all the details on how to enter. Only kids from registered schools can compete, so kids (and parents), talk to your administrators and make sure they're in on the fun. The deadline for school registrations is March 17, 2010, and the deadline for Doodle submissions is March 31, 2010.

We think this is a fun way for Google to give back to schools, while also encouraging kids to express themselves with pen and paper.