More articles keep pouring out of the gaming press on Halo 2 now that the gloves have come off. Computer and Video Games has parts three and four of its series, covering weapons and Pete Parsons, respectively. Note that C&VG requires you to register an account after you've viewed a few pages.
TeamXbox has also summed up the new information.
Fluffy at HaloPlanet has written part one of his Halo 2 story.