The document discusses the evolution of the World Wide Web from Web 1.0 to Web 2.0 to the future Web 3.0. Web 1.0 allowed one-way publishing of information, while Web 2.0 enabled two-way interaction and sharing through technologies like AJAX, Flash, blogs, social media sites and wikis. While more collaborative, Web 2.0 comes with security and quality issues. Web 3.0 aims to enhance search capabilities with contextual, personalized and vertical searches powered by semantic analysis of content. Open source software provides advantages like lower costs, customizability and security but requires technical skills and lacks guarantees of support or updates. Social networks are effective for both social and business uses, allowing