Giving us an idea of the particular aspect of 'folk music' that you intend to focus your dissertation on would be helpful for the many people here who are happy to help, I think.

You mention that you are looking at synchronous webcast sessions, so anything on the technology too would be great!

Is that a thought for your dissertation topic? If so, you need to clarify what you mean by anything on the technology. There are a number of people here who could tell you a lot about that technology, how is has been used etc. but I assume that you're not wanting to write a technical paper?

I apologise if I'm being negative, but I have to say that I worry if someone doing an MA is asking on Mudcat for 'anything academic' to do with folk music.

Define your terms, what you want to research, do a lot of paper based reading, and take it from there.

No offense intended.