For the comic lovers among us, one of the bloggers at Lawyers, Guns & Money is doing a series he's titled "A People's History of the Marvel Universe." I have zero knowledge on this stuff, but I've enjoyed the three posts he's done so far:
Week 1 - Captain America lurvs FDR
Week 2 - Wolverine is a Canuck
Week 3 - Actually, Captain America lurvs Bernie Sanders
Also, he mentions a website called Graphic Policy. I've been exploring it a bit, and there's some very interesting stuff on there, including for example, some fairly heavy discussions of the Alias comic book series, which is the basis for the Jessica Jones series on Netflix.