I have written about and praised the DOX magazine a couple of times as the magazine for the creative (artistic, authored, call it what you want) documentary. But if you want to follow what happens in the more commercial sector of the documentary, call it non-fiction, you should take a subscription to the FREE daily email newsletter of the magazine realscreen. It gives a lot of good information, it contains very often small interviews with documentarians, it is quickly read. You could also take a (to be paid for) subscription for a print version of the magazine.
To give you an impression of what has been written about the last days: American documentary icon Ken Burns premieres a new tv series, Prohibition (photo), about the American attempt to ban alcohol in the 1920’es. Report from the HotDocs festival, including the forum for documentary projects. Tim Hetherington, killed in Libya, receives a tribute at HotDocs and Restrepo is being shown. Albert Maysles to be honoured at the Sheffield DocFest. New film from James Marsh (Man on Wire), Project Nim, the perfect case study for the nature versus nurture debate, with the story of a chimpanzee at the center of a 1970s experiment. A lot about what Discovery and National Geographic channels are up to, including quickly produced programmes on Bin Laden… check it out and subscribe if you find it useful.