Online communities significantly contribute to global knowledge sharing by bringing together diverse individuals who share expertise and interests. These platforms allow users to exchange ideas, resources, and best practices across geographical and cultural boundaries. The collaborative nature of online communities fosters the growth of knowledge that individuals may not access in their local environments. Additionally, user-generated content enriches the information available, promoting continuous learning and innovation. By facilitating discussions and encouraging contributions, online communities not only enhance individual knowledge but also build collective intelligence, driving advancements in various fields and industries.