I came across this tool via Teachers love SMART Boards. James Hollis provides many resources for all disciplines that can be used with the SMART Board. Harmony is a website that allows you to draw on a blank template using various colors and brushes. This was easy for me to use and I am far from artistic.
I see this site as something that could be used to model techniques within an art classroom. Teachers or students could create an example and then use the screen capture toolbar within SMART Notebook to save their work. This tool could also provide a great tool for students to share visualizations of their reading, science inquiries, and more.
This tool is very simple, but has many integration possibilities.