Brain Pop http://www.brainpop.com/
Bill Nye the Science Guy http://www.billnye.com/
Funology http://www.funology.com/
Illusions http://www.questacon.edu.au/illusions/
Questacon http://www.questacon.edu.au/
Robot Constructor http://www.channel4.com/science/microsites/R/robots/constructor.html
Science Explorer http://www.exploratorium.edu/science_explorer/
Sea and Sky http://www.seasky.org/
Facthound http://facthound.com/Search.aspx
WE ARE THE ROCKS!!!! http://www.musicallyaligned.com/we_are_the_rocks.htm