Intelligent agents are widely used in many real world applications including the evolution of web and applications. The contributions included in the book are: Innovations in Intelligent Agents in the Evolution of Web and Applications A Multi-Agent System Based on Evolutionary Learning for the Usability Analysis of Websites Towards Norm-Governed Behavior in Virtual Enterprises e-JABAT - An Implementation of Web-based A-Team A Resource Discovery Method Based on Multi-Agents in P2P Systems Adaptive and Intelligent Agents Applied in the Taking of Decisions Inside a Web-Based Education System Browsing Assistant for Changing Pages Considering Resource Management in Agent-based Virtual Organization BDI Agents: Flexibility, Personalization and Adaptation for Web-based Support Systems Ontology for Agents and the Web Ontology Agents and their applications in the Web-based Education Systems An Evolutionary Approach for Intelligent Negotiation Agents in e-Marketplaces Security of Intelligent Agents in the Web-based Application.