Problem with geographical google serp

Hi

For a month ago I created a niche site. when searching for the keyword it's optimizied for in google.com, my niche site isn't even on the list (not in top 300).

But if I search using google.no then I get position #2 on page 1. I guess few are using google.no to search for that keyword, because it's a English word.
So I don't get much traffic from google.no - tonight I had first hit...

So I was wondering if there are something I need to do to optimize it more for google.com or English speaking countries... In Google Webmaster Tools I haven't specified Geographical area, should I do so? Maybe there is a meta tag where I should specify that the content is in English?

I have been using this tag all along:
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />

In google.com you're probably ranking very low, maybe not even in the top 1000. You need to start building backlinks, if it's a keywords for which you stand a chance. And the tag you reffer to has nothing to do with your serp.

You can choose the destination country of your site on Google webmaster tools. But it 's not working well (at least for me). It will depend on many things.