This article introduces the concept of platform nations to capture an important recent shift in the way nations and nationalism operate in the public domain. If the rise of the Internet initially led to a weakening of state control over public expressions of national belonging, the growing monopoly of platforms enables states to reassert control over national imagination, while also opening doors for other political and corporate actors to interfere in the process. This shift appears to be contributing, at least in some parts of the world, to a disciplining of national imagination online, partially reversing the trend to greater democratization seen in the early stages of the Internet.
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