Since the Vine app launched everyone, including brands, has been experimenting with the potential of the platform. Among them, Steve Madden recently launched a full-fledged Vine ad campaign. The campaign, a first for the new app, asked New York photographers to capture and showcase a different shoe style in Vine clips. The videos will be shared across the app, Facebook and Twitter and will promote a 30 percent off spring sale for the new collection. (Brand Channel)