Matt Cutts wrote that the underestimate would be sites where, instead of useful content, the user sees only advertising, and for at least some information have to scroll down the page. These are the sites and will go down in the grant. It should be noted that, Google is not going to reduce the grant sites with pop-under and click-under (and with other types of pop-up ads). A pity.
While that action will be taken only with respect to sites with a lot of static ads directly in the content. And yes, as usual, clear criteria of what it means "a lot of advertising on the site» Google does not. The truth, according to Cutts, webmasters especially nothing to fear - sites described above, no more than 1% of all indexed search engine Google resources.
Once this information has been published, immediately there were opponents of the decision. It is true that the supporters are no less and maybe more - in fact many of us are tired of sites that are really just crammed with all sorts of advertising, with no useful content. Perhaps the most outstanding representatives "reklamosaytov" disappear from the issue, and it was good.