Hashtags are part of a category system. Want to find all the posts on a particular topic, product, or person? Hashtags help you do that. Watch The Today Show. They’ll ask people to post comments on Twitter about a certain topic and have a unique hashtag to represent that. Then they will go out and pull up all posts that have that hashtag on it and post the good ones on television.
Create a unique hashtag for your product. You can find which ones are already in use simply by typing that hashtag in the search box and seeing what comes up. You do not want to use other people’s hashtags especially if they are specific to an organization, product, person, or event.