The rapid progress in internet services and its applications have transformed the world into a digital book. This book is a compilation of chapters that discuss the most vital concepts and emerging trends in the field of internet communications. Some of the diverse topics covered in this book address the varied branches that fall under this category, such as networking protocols, web protocols, cloud computing, internet of things, networking architecture, etc. This book is meant for students who are looking for an elaborate reference text on internet communications. As this field is emerging at a rapid pace, the contents of this book will help the readers understand the modern concepts and applications of the subject.