There are many possibilities of using digital photography in the ESL classroom: as prompts for writing or speaking, as a way to tell daily stories, personal facts or emotions, as a way to illustrate short tales...
I've been using digital photo cameras a lot. Students like to shot their own pics and explain about them.
Using Instagram, Picassa or any other photo sharing program with the possibility of editing them with filters and frames, brings more fun to any language outcome.
Read the full article appeared in Education Rethink "Ten ideas for using Instagram in the classroom" at Cockroaches and Ladybugs blog.