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The social-news front page of the mid-2000s web, where users submitted links and "dugg" them up or buried them. A single spot on the front page could bury a small website under a flood of traffic — and then a redesign everyone hated handed Digg's entire audience to Reddit.
"Today, [something humiliating happened]. FML." The confessional site where strangers shared their tiny daily disasters as one-sentence anecdotes, and you voted on whether their life truly sucked — or whether they totally deserved it. The three-letter sign-off outgrew the website and became everyday slang.