Caption Bubble allows you to pick any photo off the Internet (or one that you upload) and add a “bubble” to it and then add text. It can then be emailed, and the url can be posted on a teacher’s website, a blog or online journal.
There are a variety of web applications that provide this ability and more. I like this one, though, because it is very, very simple. That quality, along with the actually writing of appropriate text, makes it helpful to English Language Learners of all levels.
I’ve placed the link on my Examples of Student Work page under Student Photos.