There are over 5,000 subreddits with plenty of overlap and similarities. Randy Olson graphed them based on link activity and users and put them in an interactive. The overall view isn’t that useful (other than easily spotting the My Little Pony-themed outlier cluster in the top right), but if you use reddit and are familiar with the territory, it can be fun to browse.
Network of subreddits
This is an American Workday, By Occupation
I simulated a day for employed Americans to see when and where they work.
Causes of Death
There are many ways to die. Cancer. Infection. Mental. External. This is how different groups of people died over the past 10 years, visualized by age.