Google has recently released a major update of its search algorithm . It is essentially about low-quality sites below to place in search. It is striking that in the last week masses search engine rankings have crashed. I have all the times a bit under the microscope and compiled the factors that have led in recent days to massive declines Visibility:

• Directory listings
• Pages with little content

1st Directory listings
The theme directory listings, especially for large Internet portals is to be found again and again. Such lists are used to improve the internal linking, and in this case means that the address entries are found more easily. This fly but just mass from the index. The interesting thing is that this does not affect the visibility great. I've watched a few of these kind of portals address. Without exception, all just to lose at least 30% of their indexed pages. In the above case studied is as high as 85%. But, and this is the interesting part: It has no effect on the visibility of the page. The investigations which I made ​​to show the topic however, for example, that such a move, the linked list of pages sub-pages in the rankings down. It almost seems as if this kind of internal linking is just completely devalued.

Google is a U.S. company obliged to disclose information to U.S. authorities. Even if these data are stored in Europe.

The U.S. government has access to user data that is stored outside of the United States. Google confirmed that the Business Week . In the past there have been several inquiries by the U.S. government, the authorities hand over data. Google makes no secret of it and regularly publishes its own statistics for such cases. The U.S. government has also empowered to interrogate this data when the affected server is in Europe.