Today's nifty web tool is called Tilt-Shift Maker. Despite what it sounds like, it is not a ride at the State Fair. It's actually an interesting tool to edit photos with. You adjust where you want the sharp focus to be placed and then the rest of the picture is in soft focus. It's really an interesting way to draw they eye of a viewer to a particular detail, and students could certainly use it in photos they make for lab journals, geography or history projects, or even for illustrations of their creative writing.
The website does allow you to change the width of the sharpness window, adjust the sharpness of the focus and to smudge the soft focus parts of your picture even more than the default.
You have to love all the great "toys" out there these days!