Here's the regular information.

Of course you could test for larger screen sizes and make use of that space too.
Even if you shrink the browser, that part will remain over there on the right

How I do make use of this Screen Real Estate?

You know, -- 800x600 is the standard for a web page.     However what about those who have screen sizes that are larger (ie. 1024x768?   Those persons could be 60-70%). There is a potential width of at least 220px or more that still could be use!

Here's a brief exclamation:
Because there is only about 2% or less that do not have JavaScript enabled, we can test for screen size in the <HEAD>. In the <BODY>, within a JavaScript test, have an <IFRAME> which includes the extra information. If the test turns out to be false, include that link somewhere else. View the source code for the details. Change line #182 to false to see it in action.

I am now just having fun here. I tested to see if you have a screen size of 1024 or larger.
If so I added another page right at the bottom.
The point being is, -there are a lot of possibilities.

It all boils down to knowing your audience and who is going to see the page or website.