Ever since the times of IRC, there has been a need to categorize specific messages on the internet. With the rise of the social web and increased amounts of information, this habit became even stronger. First popularized by Twitter, the hashtag was introduced in 2007, and since then, found its way into standard offering of the most popular social services (Instagram, Tumblr, Google+, etc.). It seems even Facebook will introduce its own version soon, though people already use them overthere anyways. The hashtag changed the way we create and consume content, and it became a symbol of collaborative publishing in the social era.
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written 8:57 CET on chronolog