That's true. I should add /r/Sino to that list. I also subscribe to ChinaTalk, but I'm not sure how valuable a it is for really gauging what goes on in that part of the net. Unfortunately, I can't read Chinese, so I have to trust someone to translate and aggregate that content in the end.

I haven't tried anything outside of US, China (these two being the two major geopolitical players), and Russia (because I am from there and understand the language). I would love to expand that list, but my time is limited.

Another factor is that reading American commentary is entertaining because I live here and am immersed in the culture. The same goes for Russia. I haven't been able to make this work with China: there is a mass of cultural material that I'm not "in" on, so it feels much more like work.

Aren't you just subscribing to the geopolitical bubble now? Is there a way to add quilting, farming, and spelunking?

Tongue in cheek, but I bring this up to point out that while it might be good to expand one's knowledge, it can become a virtue. When that happens, we're all condemned because it'll never be broad enough.