Zhihu is a popular Chinese question-and-answer platform where users can ask questions and receive answers from a community of knowledgeable individuals. Launched in 2011, it has grown to become a significant source of information and discussion on various topics, including technology, culture, and education. The platform allows users to create profiles, follow topics, and engage in discussions, making it a social network for knowledge sharing. Zhihu also features articles and blogs, enabling users to share in-depth insights and experiences, further enriching the content available to its audience.