FlipMyPhotos.com is a free application which allows on-line editing of images and photos. Some of the features included are rotating, cropping, resizing, adjusting brightness, and removing red eyes from the photo/image. There is no software to download so you can access this tool from any computer. Unfortunately, this is only a temporary storage device(24 hrs.). So it would be wise to edit your photo/image, and then immediately download it to your computer or send it to your email. This would be a great tool if you are creating a classroom slideshow and you wanted to edit the pictures at home before you showed them to your class.
Dabbleboard is a white board that can be used with sketches from scratch, pre-made drawings from contributers, or uploaded images. With Dabbleboard you can add lines, text, arrows, and many other tools to your image. An additional feature of Dabbleboard is the fact that you can sketch with one or more people in real-time. If you have a webcam or a microphone you can also chat while you are working. This would be a great resource for an art teacher because he/she can show how to draw certain objects/items in real-time. The students can watch the teacher as she is creating the project.