With about 20,000 unlabeled audio files to classify, as part of a big breaking story, we created a process to help us focus on the files we actually needed.

As we did last year, we’ve asked a couple of dozen people from all around the news-nerd community to tell us about one thing—article, feature, app, tool, or something else entirely—that they loved in 2015. This week, we’re publishing their responses, from interactives to project management software. We hope you find here at least one thing that eases your work, inspires new angles on your stories, and helps carry you through to 2016.

Earlier this year at La Nación, we developed Doc2Media, an app that adds media resources to documents hosted on DocumentCloud. We created it to visualize hearings from a famous trial led by Alberto Nisman, a prosecutor who died in unclear circumstances hours before testifying against the Argentinian president. After we finished the project, we wanted to extend its functionality and abstract it to a tool that can be used in other projects as well as by other newsrooms.

At La Nación, we have been working on real-time coverage of Buenos Aires elections, as well as a more detailed view results once we get data for each polling station. In this post, we’ll to explain our mapping-app innovation that allows readers to choose what parts of the city they are interested in by drawing shapes over a basemap, and then returns custom results for their selected area.