Yes, there's no doubt about it, the monthly magazines have a hard time keeping up with the internet when it comes to news — with the odd exception of carefully-hoarded exclusives, with which they still have considerable success thanks to their hard-won contacts. But for historical articles, although there is a lot on the net, there is an awful lot which is unlikely ever to appear there in the same depth or quality. I can certainly recommend the new(ish) quarterly The Aviation Historian for that, although I must declare an interest!