First, when you hover over the navigation, the blue is too big compared to where your mouse is. E.g. when you're between northplanet and eportfolio, go to the section where you go from the one to the other and go over it a few times, you'll see what I mean.
Second, I wouldn't put the email-adress as normal text, it's better to make a gif of it. This is because apparently otherwise spambots can find the emailadress and spam the inbox, or at least so I've heard.
I do notice that when I go to 'contact us', the whole page shifts a little.
For the rest a very nice site! Wouldn't be able to make it in a hundred years
