There's a very good Firefox Add-On that I use, called Ad-Block Plus.
In short, it blocks ads.
But one very useful side-effect of it is that you can see *exactly* what sites are looked up on each web page. You'd be surprised how many websites are referenced on one single page.
Anyway, there's the "big" 3rd-party advertisers that are on almost every page, google ads, tribalfusion, doubleclick.net and all the rest. Just block these 3rd-party sites and you block most ads.
You know what's interesting about
www.senscore.org?They don't use a 3rd-party advertiser. There are No links to anything else on their page.
You know what that means?
Those ads for nikon aren't just random "it's a camera page so we'll assign it a camera ad" links like you get on place like here.
Those ads for nikon reside on the same website as the scores.
You know what that means?
Nikon are paying that site directly.
nikonfail.