A range of companies -- from social networking startups to media organizations to tech titans like Facebook -- have been boldly experimenting to allow audiences to express their emotions online. From hearts and emojis to filters and color wheels, these attempts have transcended traditional language and generated an enormous amount of data about how users’ behaviors on digital platforms are driven by their feelings. Designing for this kind of digital experience could potentially spark greater understanding and empathy between audiences and the media online. We’ll look at some case studies in emotionally intelligent user interfaces, including high–profile, mainstream examples and more obscure, experimental ones, and learn about the data and science behind them.