Designed to help educators deliver relevant instruction through the use of 21 -century technologies, this resource examines available low-cost hardware, explores free Web 2.0 tools, and sheds light on the pros and cons of using mobile technologies for instructional support. Emphasizing the ethical use of technology, the book identifies: • Specific Web 2.0 options for supporting collaboration and communication in K–12 settings • Strategies for practical applications • A decision-making model for selecting appropriate mobile technologies and Web 2.0 tools for classroom use • Recommended books, Web sites, and online reports and articles for reference •