At this point, I'll need to assume some familiarity with the subject matter. If you haven't already, take a few hours to read these five articles, and then come back:

Yudkowsky (2008a)
Sandberg & Bostrom (2008)
Chalmers (2010)
Omohundro (2011)
Armstrong et al. (2011)

Not having the names of the articles here seems odd.

I would recommend against offering AI Risk as the first article: to someone who doesn't already know why the beginning is relevant, it seems to take a long while to get to the point and is generally not what I'd use as an introduction. Put Chalmers' article first, perhaps.