This semester I founded an organization called the Cornell Open Data Initiative (CODI), which centralizes, documents and supports a number of open data resources for the Cornell (and Ithaca) community. As the goal of the organization is lowering the barriers to entry for utilizing these resources, a marketing site that is simple and approachable, while also building a very strong sense of credibility, is of the utmost importance.
One of the principal challenges of this project has been working with very technical co-founders, who often view design/marketing/business development as "fluff" or "veneer". Based on my intial usecase development, however, I was able to generate a series of opportunity sketches that gave my fellow stakeholders a much clearer sense of what a website could offer CODI, beyond a static pointer at our data.
One large point of contention with the more technical stakeholders was how much emphasis should be placed on the raw data resources (building credibility with developers) versus information about the organization and its mission (building credibility with administrators). I explored several variations of homepage designs to address this, eventually settling on the current design. With a large, mission-oriented tagline, it makes the intention behind the organization clear, but also highlights a strong, data-centric CTA. Further down the page is some additional information about the organization itself.
Another key design challenge was creating a "get involved" page to attract and motivate potential contributors. While the organization has generated lots of interest, rallying and organizing efforts to contribute to the project has been a logistical mess. This page aims to make it easier by automatically pulling in issues from GitHub and sorting them by skillset/interst.
The site isn't live yet (I'm currently in the process of coding it up), but you can view the clickable prototype.