Digital Downloads and Compression Effect’s on Society

I need information on how digital downloads/media and digital compression effect’s society. I need to follow the outline below. I'm running out of information. I need to analyze the integration of a computing technology into a specific field from at least two perspectives such as historical, legal, ethical, economic, sociological, aesthetic, or scientific.

Digital Downloads and Compression Effect’s on Society
I. Introduction
II. What is digital downloads and digital compression?
A. How digital downloads and compressed files are used
III. Where to find digitally downloadable and digitally compressed files
IV. Pros of digital compression and digital downloading
V. Cons of digital compression and downloading.
A. Legal issues involved with digital downloading
VI. Conclusion