Hello, I am writing my bachelor's degree and I want to study how a certain party communicates through mass-media (I am most interested in Twitter, Facebook and Youtube).
Does it have to be all the platforms? Different platforms may pose challenges in your data collection if you plan to collect the social media content (twitter allows automated content mining, facebook is dependent on the privacy settings). I suggest you define your research questions and then choose an appropriate methodology to answer those questions. Good luck on your studies.