I recently wrote a little Python script to scrape the url from top submissions to Reddit's /r/The_Donald vs. /r/EnoughTrumpSpam to get an idea of the most conservative-leaning and liberal-leaning news outlets (e.g. more specifically which news sites conservative-leaning and liberal-leaning redditors use to support their respective narratives). Here are the results:
https://i.redd.it/45ezt3j9hziy.png
Edit: Oh and I almost forgot (and to bring this full circle) a Googler saw my post about this and made an interactive version:
https://medium.com/@hoffa/reddit-favorite-sources-the-most-l...
Edit: and to really bring this full circle, this Googler made an interactive version about HN:
https://medium.com/@hoffa/hacker-news-on-bigquery-now-with-d...