cresby.com will tell you loads in the area it covers, but watch the datestamp and use the contact numbers provided.

Not all folk clubs are the same. It can be a folk club because you can be a member, pay on the door, or because the organisers prefer that description.

It might be a concert format, floor spot or even just a singaround.

It might be an open mic, open stage.

If it is on my lists webmail me and I will tell you what I know (which is not that comprhensive but it doesn't cost to ask.

And weekends might be a bit lean so consider festivals, and free ones if you are serious about anthropology. Folk and anthropology don't sit well with commercialism. There are a lot of little festivals that carry folk without being overburdened by it. And they don't get too much publicity.