Why is it always Japan and anime? It'd be nice to see articles like "32 Telenovelas for 32 States of Mexico" or "16 Home Renovation Shows for 16 Bundesländer of Germany" every once in a while.
Ever play Civ 5 and get the message how another country is annoyed that their citizens are all wearing blue jeans?
Anime is popular, subculture wise, and people who like it would most likely grew up on the internet. Thus more news about Japan would spread online. We see the same thing with Korea now with kpop, kdrama.
Compare that to Mexico or Germany, where is their cultural influence? Food yes, drinks yes. But there's virtually no media being published on the same scale as Japan. Nor is it constantly talked about.
Japan and anime are a bit special as well, because they tend to always animate their home country or include it in some manner.
Also (still) the third largest economy in the world, and for a decently long time, second. That necessarily leaves its mark on the rest of the world.
Why doesn't China enjoy the same sort of influence? Because they erased much of their culture during communism.