PassiveWP is a platform focused on helping users generate passive income through various online methods, particularly emphasizing niche websites and affiliate marketing. The site offers a range of resources, including guides, tutorials, and reviews of tools and services that can aid in building and monetizing websites. By leveraging PassiveWP's insights, users can learn how to effectively create and grow niche sites, optimize them for search engines, and implement affiliate marketing strategies to generate sustainable, passive income streams.