Let’s (Google) dance!

Since a dozen portals of my clients have suffered serious consequences as a result of this phenomenon, here is some news you find here and there regarding the topic. If you think you fall into a similar situation, please contact me!

Lawyers for KinderStart.com, a portal dedicated to children's products, Google reported a substantial damages claim, and: "Our main page has lost 70% of visits because of a decision by the arbitrary and opaque Google ".
KinderStart argues that California would lower the engine page-rank of the company's website, used by Google as a criterion for calculating the visibility of a web page. Although partial and certainly not very effective in describing the quality of a website, this "index" is advertised by Google in various ways, for example, with its Toolbar. According to the lawyers of the U.S. site that produces a wrong suggestion on the actual popularity of the site itself.

Computer Point

Google does not look at anybody when it comes to borderline practices to gain popularity: in Mountain View are very serious about their PageRank, and all activities suspected of resorting to underhanded tricks soon starts to cause a downgrading of the site you are trying to promote: commonly called that the site was hit by a Google penalty. [...]
There are also many other situations that can lead to downgrading: a Google Bomb, material copied from another site, a page full of links strategic link.htm etc.. The experts now prefer to talk about filters, since the techniques used by bigmir have become increasingly sophisticated and are able to cover a wide range of potential tricks.
Atuttonet

Interlinking from the same IP. Interlinking to mean when webmasters link to all sites owned by them even if they have irrelevant content, link to many sites with the same ip is considered by google something "bad" so this may be one reason for Many such sites have been downgraded.
The Damned Contest. I think that google does not clearly pleased that a site uses this marketing strategy to get a ton of backlinks, a striking ESEP Gekissimo may be that with the contest of the Nokia has got really a lot of popularity and backlinks, and perhaps was demoted for this. (As well as to sell links)
Selling Links. Well this is known, everyone is against accandendo text links ads, but the problem riguara all networks of this kind, even Linklift the service of buying and selling links used by many Italians, to work around this problem would be enough that the owners of the network enters the nofollow attribute to links bought, but in doing so those who buy more than a link?
Trains and more. If you read the rules of Google webmaster guidelines in the capacity that a web page should not contain more than 100 links, unfortunately trains run from major sites, easily exceeding that number.
Soldiweb