The Horizon Report: 2009 K-12 Edition, published by the New Media Consortium and the Consortium for School Networking, identifies emerging technologies expected to impact teaching and learning within the next five years. Key technologies discussed include collaborative environments, online communication tools, mobiles, cloud computing, smart objects, and the personal web, while highlighting trends and challenges facing K-12 education. The report aims to provide educators with insights into the adoption of these technologies and the evolving nature of educational environments.