I find it really inspiring to use photo's as a basis for ideas when writing. Not only does it help to create more vivid contexts and settings within which to place your characters, if you're lucky, sometimes a story or an idea for a poem might strike you.
I-Phones Hipstamatic app is very good for making an average photographer (such as myself) take great, atmospheric pictures.
They also occasionally hold exhibitions of the pictures that users of their site: www.hipstamatic.com upload. They chose one of mine a while ago and it was great fun going to the exhibition, especially since I've been to so many in my time for the artists I've used in Trespass/NT!