Study Stickies: Including a sketch in your sticky

Study Stickies now allows you to include a sketch in your sticky. When adding a sticky to a resource, you can use the mouse to draw in the sketch area. Drag to draw a stroke. Shift-click to delete one or more strokes. You can also undo and redo strokes.

You can view some of my sketches here:
http://studystickies.com/#in%3A0070527660