The first two contain basic information about Google Glass, the video is useful to get a feel for what they are like to use.
Google Glass: What You Can and Can't Do With Google's Wearable Gadget
Google Glass 'getting started' video
This is a review of Google Glass.
Google Glass 'significant', privacy concerns 'just didn't show up,' says Robert Scoble
Ok, this looks like a cool usage, though the video itself is a bit icky sweet.
Google Glass Goes to Large Hadron Collider
These next three articles show that not everyone is happy about Google Glass:
Google Glass made fun of in latest Saturday Night Live show
Google Glass: Obnoxious and invasive at any price
The White House petition to ban Google Glass is here