The Going Underground blog pointed me towards a new London photo project, Living in a Tube Map. Based on a wiki, the site invites people to submit photos of the areas around tube stations. The results will apparently be converted into an exhibition.
I submitted some old photos for Homerton and Mornington Crescent, but the point is really to go out with a camera to an unfamiliar station to take the snaps. I think some of the most interesting pages will be the outer stations like Edgeware, Richmond and Cockfoster.