|The Issue That Started It All: Action Comics #1|
Continuing this week's celebration's of the 80th anniversary of the first appearance of Superman in Action Comics #1, DC Comics has a list of five comics that make great starting points for new readers who, perhaps, only know the character from TV and film.
Comic Book Resources has a gallery of "the greatest covers from the first 1,000 issues" - along with the stories behind them - that's well worth checking out for a variety of reasons.
The masters of the comic book listicle, CBR also has a ranking of the top 20 strongest members of Superman's extended family (which, I must confess, is the sort of stuff I'm a sucker for).
Not wanting to be left out, Previews World has a "top five villains" article (which gets bonus points for featuring a picture of Sarah Douglas as Ursa).