I was surprised to learn that the Batman/Superman movie is coming out in two weeks. That explains why there are so many articles about Superman on various websites. Here are a few that seem interesting.
The m0vie blog is running a series of retrospectives examining Batman and Superman comics stories. Here's the one on Superman Unchained; one on Morrison's Action Comics run, and on about Superman and the Joker.
Speaking of the movie, IO9 put up this article about how Zack Snyder has responded to criticism of the ending of Man of Steel.
"There's nothing wrong with Superman, and hating him only proves there's something wrong with us."