Founded in New York, in 2004, Magnum In Motion is the multimedia digital studio of Magnum Photos. In Motion assembles visual narratives for online and offline platforms, including screenings in museums, festivals, and workshops, and soon, a DVD collection.

Longsight helped Magnum migrate away from a proprietary content management system to Drupal. A number of multimedia modules are in place to allow for dynamic image resizing, podcast uploading, and valid iTunes podcast feeds.

In December 2005, the legendary documentary photography agency Magnum Photos teamed up with Slate.com to produce a daily gallery of Today's Pictures.