Typo in the "keywords" meta tag: "Friednly AI" - swap d and n.
What was I doing in the HTML source, you may ask? I was wondering if you'd used some sort of tool or service like unbounce to create the page, which looks a few notches better than the other pages you mention.
I've created a new "landing page" on Friendly AI at Friendly-AI.com. This is similar to IntelligenceExplosion.com, Existential-Risk.org, Anthropic-Principle.com, and simulation-argument.com.
The site is less ambitious than the original plan for it was, but it serves its purpose.
Design courtesy of Lightwave.