Is there a website with every marvel comic on it?

Lately, I have been fascinated with Marvel Comics. The trick is finding a place with the comics that i easy to access. I know there's an App for the iPad, but I don't have one :P So, I figured there has GOT TO BE a website with all the comics on it. If there isn't, is there another way I can read all of them without owning the actual paper copies?