What Are Hashtags?
Hashtag: A word or phrase preceded by a hash mark (#), used within a message to identify a keyword or topic of interest and facilitate a search for it.
Whenever a user adds a hashtag to their post, it’s able to be indexed by the social network and becomes searchable by other users. Once someone clicks on that hashtag, they’ll be brought to a page that aggregates all of the posts with the same hashtags, in real-time....
