- Django, Lawrence Journal-World (newspaper in Kansas, USA): https://en.wikipedia.org/wiki/Django_(web_framework)
- Backbone.js, Underscore.js - Jeremy Ashkenas (former developer at New York Times, USA): https://en.wikipedia.org/wiki/Backbone.js
- D3.js, Mike Bostock, Jeffrey Heer, Vadim Orgievetskey, et al. (Stanford University Visualization, later at New York Times) - https://en.wikipedia.org/wiki/Mike_Bostock
- PastPages, Ben Welsh (LA Times): http://www.pastpages.org/ https://github.com/pastpages/pastpages.org
- The Financial Times' Polyfill https://polyfill.io/v2/docs/
- DocumentCloud https://www.documentcloud.org/home | https://github.com/documentcloud
- The Coral Project https://coralproject.net | https://github.com/coralproject | https://docs.coralproject.net
- Mr. Data Converter http://shancarter.github.io/mr-data-converter/
- Vox Media https://github.com/voxmedia
- FT Labs https://github.com/ftlabs
- LA Times Data Desk https://github.com/datadesk
- Chicago Tribune News Apps https://github.com/newsapps
- WNYC https://github.com/wnyc
There's a couple of things coming out of FT Labs: http://labs.ft.com/ (eg. https://polyfill.io/v2/docs/)