Maybe as an aside, but why should this research be done at university level? Is it expensive or require their resources? Obviously institutions are at risk of capture by special interests. We can call them non profit but doesn't stop the economics and human nature. Same is true for politicians so oversight could make things even worse as it would be even more centralized and easier to capture . So we should look for…
I guess the question is ... why shouldn't it be? Social media is a huge part of modern life in the US, has a massive impact and is all both pretty recent and poorly understood. I would expect any half decent university with anthropology or sociology (or even a political science) departments to be doing heavy research in this field.