Buck, a graduate student then working on a photography project in Egypt for his master's thesis, met Maree, a 23-year-old Egyptian veterinary student, in Mahalla.

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Coyne and Linkous worked together on last year's Dark Night of the Soul, a music-photography project involving Sparklehorse, Danger Mouse, filmmaker David Lynch and others.

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What is now a massive, multiyear photography project began more than 40 years ago, when Christenberry returned to Alabama on a research mission for his paintings.

NPR: Christenberry Photos Capture the Changing South

Inspired by the Depression-era Farm Security Administration photography project, its photographers shot everything from small Midwestern towns, barrios in the Southwest and coal-mining communities in Appalachia to African-Americans in Chicago, urban renewal in Kansas City and migrant farm workers in Colorado.

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But while Google's engineers provided technical support to the project, the actual photography and stitching together of the images was carried out by a scientists funded by the Catlin Group, a Bermuda-based insurance firm.

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Steve Springer's photo project didn't start with photography or travel in mind.

CNN: Landmark handstands and other photo traditions

As more of our daily lives move to the virtual, and for photographers hard copy prints or transparencies become a rarity, it is a treat to find a project that focuses on the world of analogue photography.

BBC: Uncovering the past

This one was convened by the UK parliament's Environmental Audit Committee (EAC) and the Hard Rain project, which documents environmental and social issues through photography.

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Next up, is an intriguing project created by a bunch of Dutch people who are mad about photography.

BBC: Netvibes website