Thought of a few more I've heard on palkalk, including Don Mexiener (reminded when he posted), Hardiman the fiddler (Amos reminded me mentioning Praise), JAB who got the whole thing started...

Reviews mentioned by Dani.. not from me but I will say what I have heard by Mudcatters covers a great variety of styles and abilities ranging from world class (I'd certainly put what I've heard of Rick Fielding's playing in that league for example) to competent floor singer/player. The big thing to me is that I can honestely say I have enjoyed listening to every one I have heard, perhaps especially the few "debuts" I have heard of ones that have needed a little persuading to risk a first live Paltalk/ Hearme attempt.

Jon