Hashtags are words or phrases preceded by the '#' symbol, used primarily on social media platforms to categorize content and make it easily discoverable. They help users find posts related to specific topics, events, or trends, enhancing engagement and interaction among users. For example, a post about a music festival might include hashtags like #MusicFestival or #LiveMusic. The use of hashtags has evolved over time, becoming a powerful tool for marketing and brand awareness. Businesses often create unique hashtags to promote campaigns, encouraging users to share their experiences. This not only increases visibility but also fosters a sense of community among followers.