At first glance, the web site for this show of photography at the Tate Britain - the first major exhibition of photography ever to be held at the museum - doesn't seem to include digital version of many photographs from the physical show. There are two albums of historical photos: Mr. & Mrs. Welford's photograph album, and The Ragged School Union, that hold roughly 200 hundred pictures, along with handwritten texts and captions that, although faithfully scanned, are a bit hard to read. There are also a few examples of professional and documentary photography on the site. First impressions can be deceiving though, because the other first about this exhibition, is that the Tate Britain is inviting members of the public to contribute, using the photo sharing service, Flickr. The section entitled How We Are Now links to hundreds of photographs submitted to the exhibition's Flickr pool, in four categories: portrait, landscape, still life or documentary. Submissions will close on July 25th, and curators at the Tate will select 40 images - one from each category - and these final 40 images will be added to the exhibition's website.