DoodleToo

"Doodletoo.com is an online drawing tool and chat room in one. Enter one of our rooms and draw your messages, ideas, moods, express yourself or post pictures to share with others! Everyone sees your pen and can join you, help you, challenge you or maybe become your friend. The whole world can now see your paintings as they are being created. It's a lot of fun – check for yourself! Register your nickname, choose your default color, start drawing and enjoy yourself! Welcome Doodler!

DoodleToo is the simplest chat ever :-). Every time you’re drawing you can press ENTER or click "Say it" and enter any message you want to share with the others. Continue drawing with your message appearing at the top of your pen. Click "Snap it" and you’ll get a screenshot! Save it, send it or post it to Facebook for all your friends to see."