The reason we're doing this every week is that the Mirrodin Site has daily updates. That's right: every single day, at least one thing gets added to either the Mirrodin or Phyrexian side. Sure, sometimes they're short (for example, this Island update on the Phyrexian side just contains the words "Drakes, birds, serpents ... these things are inefficient. The land will welcome our improvements."), but sometimes they're wallpapers, field reports ... or even more!
Having said that, instead of walking you through the individual updates, we're going to highlight some of the other aspects of the Mirrodin Site.
Regardless of whether you're on the side of the Mirrans or the Phyrexians, the Downloads section has something for you. Each side has three Wallpapers, a Screensaver, and an assortment of avatars suitable for use as IM and forum profile icons.
As the Phyrexians' plans unfold, the world of Mirrodin is turning into a war zone. You can read first-hand reports from both Mirrans and Phyrexians here, although you'll have to be on the appropriate faction's side.