"How the Islamic State is leaving tech companies torn between free speech and security is a labyrinthine topic... Today’s 8,000-word-plus story on the subject, part of The Washington Post’s “Confronting the Caliphate” series, comes with the background knowledge and context right in the story itself... Knowledge Map, appears as highlighted links…

Good overview of Circa's approach: "A new model for online journalism is emerging, focusing on the atomization of news stories into “bite-sized chunks” of information aimed at mobile audiences."