Hashtag is a thing that is most commonly used on social media sites like Twitter and Instagram. When someone posts a status saying "Just came back from the beach! #beach #water #fun", the words in front of the # are automatically tagged. On Instagram, you could click on the hashtag "water" and see all the hashtagged photos that have been taken. You could really hashtag anything.

There really isn't a point for hashtags; a lot of people only use them to get more followers by hashtagging specific words.

A hashtag is a word or an unspaced phrase prefixed with the hash character (or number sign), #, to form a label. It is a type of metadata tag. Words or phrases in messages on microblogging and social networking services such as Facebook, Google+, Instagram, Twitter, or VK may be tagged by entering # before them, either as they appear in a sentence, e.g., "New artists announced for #SXSW2014 Music Festival" or appended to it. The term hashtag can also refer to the hash symbol itself when used in the context of a hashtag.

Hashtag has become a popular internet marketing trend nowadays. You can notice its greatest impact being on Twitter. When you use a hashtag before a particular word, anyone who searches for that hashtagged word, he will automatically be directed to your post.

Now a times hashtag are trending, when an author subject to particular word and want people want to talk about it. points them as #words like #yahooanswer , you can increase your followers by using hash tag.

A word or phrase preceded by a hash sign (#), used on social media sites such as Twitter to identify messages on a specific topic.

"#" Is a character used in the Twitter app to let the reader know what over arching conversation the particular tweet belongs to.

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