This may be a help. The website for the Norfolk Folk Directory is found at www.norfolkfolk.co.uk It lists clubs and other things. It is usually out of date which is normal for Norfolk. I run The Wolf Folk Club near King's Lynn. Lots of Norwich folk come over to it. For me the Whittlesea Straw Bear Festival in January is the region's unmissable event. That's over near Peterborough but well worth the drive and braving the cold. The Cambridge Folk Festival is big and famous but it is hard to get tickets. Don't waste any tears on that, there's plenty of good stuff going off in the region.