We have a sub. to Froots, which I am pleased to say expires soon. We won't renew it. I think they are a bigoted, self-opinionated bunch whose reviews seem to be based on whether they personally like something, rather than musical merit. Being based in the UK, I much prefer Living Tradition, which at least does review mainly English/Irish/Scots trad music & is full of ads for artistes suppliers & venues near enough to visit. They also seem a lot more open-minded.
I'm sure there are a number of good folk magazines in the US, some of which I thought I could remember before I started replying to this thread, but their names have totally deserted me! Sorry - I'm sure somone else will know though.