A few of mine would probably already be taken domain names so you'd either have to put a '.vgc' for example after them or put a Z on the end. Here's what I mean:
VGChartz.vgc.com (Sales)
Discoveries.vgc.com (News Blog)
Visions.vgc.com (Community)
OurViews.vgc.com (Reviews etc)
Or as I was saying use a Z.
VGChartz.com
Discoveriez.com
Visionz.com
OurViewz.com
And you could be creative with the logos for each subsite with the V's and Z's.