MEC Marketing Assistant, Julian Chant, writes:
A Picture's Worth is an excellent online gallery which collects photo essays between 300-1000 words. It's based on the old saying that a picture is worth a thousand words. The pictures and essays are sent in by users, with a new photo essay posted every day.

The picture above is entitled 'My Home Town' and is accompanied by a short essay about living in Sydney. Nik Peachey outlines a number of ways in which the site can be used for ELT purposes in this article from his learning technology blog.
Some suggestions include: getting students to photograph/write their own photo essays and submit them to the site; printing out a few images and essays to see if students can successfully match them together; and using the site as a stimulus for an in-class show and tell.