GrDF, the French brand leader in natural gas distribution, division of GDF Suez, launched a microsite to promote sustainable development.
Competitors had to register with their professional e-mail, and post some pictures they made. Files were stored on a dedicated server, and contributions were stored in a database. An Excel-compatible extract was given to the jury after two weeks.
The site was updated later on, with the winners list and a large LightBox of the best pictures received.