Hashtags label and indicate the subject matter of certain conversations taking place on Twitter. The hashtag is represented by the number sign "#." Putting one of these little symbols in front of a word or phrase indicates a subject you think is worth talking about. The words you use after the hashtag become searchable because Twitter tracks them. That is to say, if you click on a particular hashtag, you'll be able to see all tweets that have also used that hashtag. It's a grouping mechanism that allows you to get the general public's sense about a specific topic or issue.
This is a very convenient way to drop in on subjects as broad as #GrammyAwards or as focused as #CapitalStrategicSolutions. Feel free to create your own subjects — just make sure you don't use any spaces between words in a hashtag. The #Discover tab at the top of the page will display content and hashtags that might interest you, based on your own tweets.
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