Maybe your business is new to Twitter, or maybe you're just confused about how to use hashtags correctly. Wonder no more! Here is a quick background on hashtags and their purpose:
Definition: The # symbol, called a hashtag, is used to mark keywords or topics in a Tweet. It was created organically by Twitter users as a way to categorize messages.
People use the hashtag symbol # before a relevant keyword or phrase (no spaces) in their Tweet to categorize those Tweets and help them show more easily in Twitter Search.
Clicking on a hashtagged word in any message shows you all other Tweets marked with that keyword.
Hashtags can occur anywhere in the Tweet – at the beginning, middle, or end.
Hashtagged words that become very popular are often Trending Topics.
Don't #spam #with #hashtags. Don't over-tag a single Tweet. (Best practices recommend using no more than 2 hashtags per Tweet.)
Use hashtags only on Tweets relevant to the topics.
While hashtags did start on Twitter, some other social platforms have taken notice. A couple of them, such as Google+, Instagram, Flickr, use a form of hashtags and even Facebook is rumored to be jumping on the bandwagon sometime soon. Currently, using hashtags on Facebook is considered by many a social media faux pas.