Canadian Jim Makichuk wrote and directed one of my favourite slashers: 1981’s Ghostkeeper. I check in with his blog every now and then; recently he’s had some tech issues but digging into the archives you can discover commentary on his film work over the years.
Tales from the set of Magnum P.I. by its lead set decorator.
Magnum Mania is the best Magnum P.I. resource on the internet.
Moosechick Notes is the Northern Exposure archives.