Inspired by this question, I created a map of all tags on the site.
2017 map of everything
The coloring is mostly arbitrary. That outer ring of tags is a bunch of tags that had no connections to any other tag, so they’re just out by themselves. The image links to an SVG version of the file, for better zooming.
2017 map of all tags used at least 15 times
Here is a map of all tags that are used at least 15 times. The color scheme is not quite the same as the previous map.
Here is a map of all tags from 2016. This reflects the site’s tagging prior to the recent Big Edit Event.
To make this a question: any requests? I can generate SVG, different tags, different coloring, etc.