Mariah, Will.i.am and more have infused their artistic works with hashtags -- but they weren't the first ones to do so. A look at the history, and legitimacy, of hashtag titles. By William Gruger ...

Via the New York Times style section, Jack Layton officially takes his place in Twitter history. Hashtags, words or phrases preceded by the # symbol, have been popularized on Twitter as a way for ...

They’re no longer a growth hack or a shortcut to discovery. Platforms now treat hashtags as contextual signals — one of many inputs they use to understand what content is about and who it’s relevant ...