I’ve been looking for a Rasberry Pi Zero, which is out of stock everywhere it seems, and then started to see if I could find a MagPi Issue 40.
I realized it was sold at Barns & Noble and went down to one. (They didn’t have it.)
A quick google search lead me to a post two months ago about exactly this. “Where to find the MagPi issue 40”. Raspberrypi.org was kind enough to make a map with areas that still had the magazine in the states. They said it wasn’t updated live. I’m not sure if that means they update it here and there, or if it’s a snap shot from 2 months ago. My guess is that it might be depending on how they imported the fusion table they used. (So, I really have no clue 🙂 )
Anyway here’s their map. Here is their article.