Snapshots

I read an interesting article about using digital cameras in the classroom for more than just social networking. The article reported that students are using digital cameras for all areas of instruction. One example given was using digital cameras for a vocabulary lesson rather than having the students write down the word and definition. I currently use a camera in my classroom, but I am usually the one taking the pictures. I was wondering if any of you use a camera in your classroom and if so, do you have any interesting or unique applications for doing so? Have your students reacted appropriately using this technology?