For part of my presentation at Montreal Python, I made an interactive map of the various sub-sections of the website Reddit (called subreddits). You can take a look at the interactive version or see a static annotated one above. The interactive one includes basic info on how I made it and full details are in the presentation. I got some nice comments in the /r/DataIsBeautiful subreddit post
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Code from this post is up on Github at nicolaskruchten/mtlpy50