New York-based arts publisher Triple Canopy has been known for innovative, horizontally-scrolling web publishing formats since its launch in 2008. (It was even a finalist for a National Magazine Award in General Excellence Online in 2009.) Alongslide was the third such platform developed internally, applying the learnings of the first two to facilitate the production of sophisticated, parallax-like web layouts. I interviewed editors and worked in close collaboration with Creative Director Caleb Waldorf and a team of designers and technologists to ensure that this effort satisfied the needs of the magazine’s many writers and artists: attractive, readable text in column layouts; undistracted, full-bleed imagery; integration with social and A/V media. I then developed a novel syntax enabling editors to produce these advanced media layouts in a web pure-text editor online. Since then, Triple Canopy has published dozens of feature projects with the tool and continues to use it prominently.