The Chicago History Museum has a "big tent" approach to their fine Flickr account where they ask visitors to offer up their own Chicago photographs to supplement their own exhibits. On the homepage, visitors can look through some of the tags to get started, such as "urban," "CTA," and "architecture." Currently, there are over 6600 photographs and visitors can search at their leisure and contribute images as they see fit. The real treasure here is the neighborhood collection, which brings together over one thousand photographs that document the areas outside the Loop, with images of ethnic parades, religious ceremonies, and general exuberance. Overall, it's a great resource for people with an interest in Chicago and its dynamic urban culture.