Big Huge Labs has lots of fun things to do with your photographs.  Many of these activities have great applications for the classroom. Big Huge Labs has a Trading Card Generator that can be used for biographies, Biomes/Habitats, Geometric Shapes, Animal Research, and other concepts that have mulitple components.

You will need to create accounts for your students that require an email address.  NEISD uses ePals for student email accounts.  Just contact your ITS if you are interested in using sites that require multiple account creation.