Your In America, an anti-racist Twitter account devoted to Muphry's Law

Muphry's Law predicts that "if you write anything criticising editing or proofreading, there will be a fault in what you have written."

Buzzfeed's Your In America account watches the Twitter firehose for people posting some variation on "Speak English your in America!!" and corrects their your/you're usage, with a sarcastic quip. It's solid fucking gold.