bka, I only see a few ads on Emily and Mark's site -- have you installed Adblock on your browser? I don't exactly know how it works, but it seems to filter out some of the extra junk that is tacked onto the frame around the site by third party website hosting software, while it generally leaves intact the ads that are authorized by the blogger.
I use Chrome, and Adblock is a very useful extension. You can fine-tune it so that it lets in more or fewer ads. There are sites where I don't block anything because the ads are useful to me -- rv.net, for example, carries ads by e-trailer, and I have found several good products by looking at those ads.
This is important for boondockers, since we aren't operating off of a landline or a fiber optic cable -- we need to make sure that the "signal to noise ratio" is as high as possible, so that scarce bandwidth is not wasted on junk.
So I guess this is another boondocking tip -- make sure your web setup is lean and mean!