The best part of browsing Reddit comments (besides the awesome pun threads) is discovering a new subreddit — a community so niche or fine-tuned to your interests that you can't imagine life before subscribing to it.

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In fact, if you spend time in certain subreddits, you'll find common links to others. For example, users in r/books often link to r/scifi and r/fantasy. And r/Android links frequently to r/AndroidDev and r/AndroidApps. The resulting "cliques" are great places to find and trade content about related topics.

If you've ever wondered what these interconnected communities might look like mapped out, you're in luck. Using data provided by a Reddit admin, user sharkbait784 has plotted every Reddit post since 2008 into an interactive graph, revealing the subreddit connections. The result looks a lot like an organism or a galaxy, and zooming down into the cliques is fascinating. It's also a great way to discover new subreddits you might be interested in.

Because popular subreddits like r/pics and r/funny cover a broad range of content and link to other subs indiscriminately, sharkbait784 implemented a link threshold to keep the graph readable. This ensures that only subreddits that link regularly to others get clustered together into cliques.

The screenshots don't do the map justice. You really should do some exploring here.

Zoomed out, Reddit's network looks a bit like a galaxy of stars or an organism.

Zoomed in, we can see that r/videos is a central hub for a variety of other communities.

This offshoot shows that r/MyLittlePony is the hub for a variety of other subreddits, including r/MLPtunes, r/MLPlounge and r/MyLittleFanFic.