Remember when the pound symbol was just that - something you pressed after entering numbers on a keypad. Well now that symbol has become iconically referenced as the hashtag. Along, with social media the hashtag has become the in symbol and is accompanied by a word or phrase that is trending. It's better to use hashtags that always trending this way users who follow the hashtags may like andor interact with your posts when they see them in their feed. Intrigued, huh? Here are the popular hashtags you should know.