extra - 7:58 pm on Jun 14, 2009 (gmt 0)
I now understand why I'm not a pro SEO. It's a huge amount of info out there (your 2 links is for 66 pages alone), and worst is that some is changing all the time as Google change their algo. But authority and trust seems to stay, but the "value" of it is changing.
I think I have obtained some kind of lokal rank or local trust (as some edu institutes are linking to me), as this is the only way I can explain my ranking for the last 3 years.
I think I will stay with my engineering business and let you pro take care of the difficult stuff :).