Gmail enters the "extend" phase of Embrace, Extend, Extinguish by creating new proprietary features for email then forcing non-gmail users the view the mail through a link with Google Login (and sometimes SMS confirmation!)
Oh reddit. "During the Cold War, Finland secretly smuggled more than ten thousand vowels from Czechoslovakia. That's why the Finnish have sentences like 'Älä rääkkää kääkkää kääkänrääkkääjä!' and the Czechs have 'Strč prst skrz krk.'"