Imagine this situation: Website A is ranked #8 on google.com.br (Brazil, for example). Site B that is ranked #1 in same niche for same keyword offers advertising. So, if site A buys advertusing on site B and is start getting niche related quality traffic, will it help site A to get SERP improvements? Or it will just improve Alexa rank? Second question related to the first one: Site A is trying to outrank site B. Because of that is building let's say 100 backlinks daily. This is obviously unnatural and site will get penalized sooner or later. If site A keep building links like that, but start getting a lot of niche related REAL traffic from Brazil (from competitor sites), will it "hide" and "justify" this lots of coming backlinks? I think my questions are really good and adequate for constructive discussion.