I have been using SnapChat since a good friend of mine showed it to me several months ago. It is sort of a funny little app. I can imagine it being used for some not so nice ideas, which may even be why it was built. I enjoy sending a picture of something different to my friend that taught me about it, but none of my other friends are using it, so I only trade snaps with Meg. I can't imagine what this could be used for in school, but people do some really inventive stuff. Someone more imaginative than me may have great use for it in education.
I have not used Instagram before and I really like it. I can't believe I never tried it before. I did hear some folks mention it on Facebook, but I didn't really know what it was. I can see sharing a lot of snapshots with this app. It isn't a lot different than taking a shot with my iphone and then sharing it, but it does allow sharing a lot easier and faster. There is also some editing ability, but I am not so interested in editing a photo I just snapped with my iPhone. It is more about the ability to easily share the photo that appeals to me.