Go Comics' biography of Elvis Presley
Go Comics is a vast resource of political cartoons, graphic novels - both published and unpublished - and Japanese manga. It is truly one of those sites you could spend days getting lost in.
I recommend sticking with a single section and working your way through. American politics will always provide big laughs thanks to the catastrophic state of the Republican party and the bitter in-fighting Democrats indulge in each time they look close to winning an election. This section is also enjoyable because the editors provide a short summary of the cartoonist's work and a critique of her/his latest effort.
However, what I have really enjoyed recently is Biographic, which picks a Hollywood star or world-famous musician and presents their lives as a graphic novel. At the time of writing, Elvis Presley was the featured artist. Leaving aside the rather pedestrian prose that accompany the biographies, the effect of seeing these people rendered in heroic, Marvel-style brush strokes seems, perhaps unintentionally, to say vast amounts about the egos of those who have always fancied themselves as larger than life.