There's a heady discussion about photography going on over at wordswithoutpictures.org. If you need something serious to read on your summer vacation, this could be the place to go.

From the intro to the project website:

WORDS WITHOUT PICTURES is purposefully multi-voiced and multi-layered. It includes essays, discussion forums, debates, one-to-one conversations, and questionnaires. Words Without Pictures is using this range of formats to gauge a broad range of opinions about photography before they become received wisdom.

The current essay under discussion is titled: "A Picture You Already Know" by Sze Tsung Leong. It explores (among other things) the idea of repetition in photography.

A companion site pictureswithoutwords.org attempts (with varying success) to riff on the same essay ideas without using any text at all.

Thanks to Tim Lewis for the link.