I'm not sure "Which is your site frequency" is a good SEO title or even proper English. It checks PR and Alexa but nothing else? What about...
I already do this on my sites with a free javascript. I've also seen nasty Flash implementations of the same thing.
We have copy writing services at ethercycle.com
You can never know too much. Even if you don't ever use Flash, understanding it will help you to understand when its appropriate to implement it.
Whenever a site goes down, you can always try to find it at archive.org or in Google's cache.
Well your AlexRank is 344k so you're on your way to getting in the top 100k I'd add a footer to your site.
Separate names with a comma.