RSS3 is an information dissemination protocol that bridges web3 to AI, search, feed, and beyond. It aims to achieve an open, efficient, and secure flow of information on the Open Web. RSS3 offers AI-ready capabilities, allowing users to train AI models with natural language content from the decentralized web and access data from blockchains for AI applications. It also provides search functionalities for the entire Open Web, including blockchains, and allows users to leverage a comprehensive blockchain activity feed for constructing social networks.