World Wide Web is becoming an utility, not unlike electricity or running water in our homes. This creates new ways of using the web, where Social Media plays a particular role. This gives an unprecedented opportunity to study the emerging social phenomena in the virtual world. In addition, it opens new avenues for improving public services such as schooling and education. This book includes some of the latest developments in employing the information and communications technologies for examining both virtual and real-life social interactions. Investigating modern challenges such as online education, web security or organized cybercrime, this book outlines the state of the art in social applications and implications of ICT.