Objectives of the book * Assess the meaning and examine the impact of OER and Web 2.0 on collaborative learning; * Deepen understanding about the diverse range of Web 2.0 tools and practices for collaborative learning and collaborative development of OER; * Foster the exchange of information and good practice in collaborative learning 2.0 techniques, with frameworks and case studies; * Raise the level of awareness of the challenges and opportunities that open content, new social tools and new social media afford for collaborative learning; * Explore visions and scenarios for the future development and deployment of collaborative learning through open educational resources generated by users, both organizations and individuals.