Sumopaint is a great example of what is now possible using a web-based tool. This site/program offers the user a "virtual" paintbox, complete with layers. And if you create an account, you can save your work and open it up later, with the layers intact. Finished products can be downloaded as jpegs for use in other projects. The image gallery has a mind blowing array of samples created by members of the sumopaint community. This is a perfect way for an art teacher to introduce the digital medium, without having to install costly, proprietary software.
