Mass communication and journalism are interrelated. In general, print media, electronic media and internet are some of reliable vehicles to provide information to different sections of the society with the sole purpose of increasing awareness. People get information from these media centres for updating their knowledge banks. It is a type of public communication system. It is a sort of information based system or an effective network to facilitate people to share their views, opinions and their own innovative thoughts. In sum, this book can serve the purpose of an introductory sourcebook on the subject area of mass communication. The readers will gain a great deal after going through this book. Contents: Operations Research o Digital Media o Weblogs and Journalism o Participatory Journalism and Weblogs o Signal Processing o Film in India o Electronic Media o Recording o Printing.