http://www.crayola.com/coloring_application/
slick - and kid shiny
http://www.sketchr.net/draw/
see below
http://www.queeky.com/draw/multi/
curious - a drawing community - draw together, view others drawings animated...
http://www.imaginationcubed.com/LaunchPage
The GE one...
http://www.youdraw.com/emailpad/emailpad.html
email yourself a quick sketch.
This one done with sketchr, saved as svg, opened in inkscape and exported to png bitmap.
