LEAD official site:

http://www.u21.org.hk/LEAD

Image Libraries:

http://www.pienetwork.org/

http://pienetwork.org/astc2004

http://18.85.45.97

http://www.inventionatplay.org

http://www.wellesley.edu/Physics/robots/studio.html

http://www.build-it-yourself.com

http://www.ceeo.tufts.edu/robolabatceeo/galleryv2

http://www.thetech.org/robotics