Welcome to the Q&A Forum

Great answer with some quality humour. Love it! Thumbs up for you sir!

Apologies, typed that up wrong. Have updated above post.

Well KEYWORD Z is a very competitive keyword I do agree as well as is KEYWORD A. SEOmoz gives me an A grade for the On-Page optimization. It looks like some companies (at better position than us) purchased tons of links for KEYWORD Z but Google isn't doing anything about it...

I also ways say, go with what the SE gives you, we think we know a lot, but some times a page will rank well and you just don’t know why. Take it and run with it.

Go to http://www.seomoz.org/api you'll find your answer.... You can also go to http://apiwiki.seomoz.org/w/page/13991128/API-Credentials to get more info As this was my fist post... hope this has been useful

It definitely does not influence search engine results in any way whether you use www or not. It is purely a matter of preference. One consideration you may wish to factor into your decisions is links. A shorter URL allows for easier link sharing. If you do not use www, then you are saving 4 characters (www.) which makes your links smaller. But...most software will recognize any word beginning with "www." as a link and convert it into a hyperlink. So www.mydomain.com would be a hyperlink, but mydomain.com would not be a link. You would need to use http:// in addition to mydomain.com to make the hyperlink. Then again, some software still doesn't convert based on the "www' so you would need to entire http://www.mydomain.com. I probably crossed the line into giving too much information. We live in a world of tweets and friendly URLs so I thought it was worth mentioning.

could be they were swamped with other work - their plates have been pretty full lately.  (Not an excuse or justification, just a possibility).  I've just send a private message to someone to see if they can jump on it for you.