The reference collection is a great place to begin your research. These short relevant articles will give the basic understanding you need to formulate a good research question.
The Encyclopedia of Social Media and Politics explores how the rise of social media is altering politics both in the United States and in key moments, movements, and places around the world.
The "Encyclopedia of Communication and Information provides a comprehensive overview of universal modes of communication, the media, theories of communication and their implications, careers in communications and information, and biographies of notable figures in the field.
The Encyclopedia of Communication Theory provides students and researchers with a comprehensive two-volume overview of contemporary communication theory.