Hi,
I am currently in the process of my Master Thesis. I have already found a topic and approximately know what I will be writing about. The only problem of mine is that I can not find any suitable theory or concept for my thesis. My topic is related to the user generated content and the firm generated content and how they can affect the brand awareness. Is there anyone who could help me with some ideas, cause rankly I am a little lot of what the theory or the concept should be like in order to write a thesis.

Many thanks!