Google: "The day of reckoning" 
I thought it would come some time now, the biggie is operating at a curtailment of PageRank.
Computer Point writes:
"among others include Washington Post, Forbes, Engadget, Problogger. All in a few hours have seen a decline or, more often than two points in the index of its assessment of the relevance engine weblog Mountain View. The reason, at least at the moment, everything remains to be clarified. "
There will be many e-commerce will lose a lot of money, in less than a PR involves a sharp fall in the standings. But google does not just stop but this also affects blog.
Computer Point writes:
"Then it was the turn of the blog. Allegedly, the habit of their owners need to be addressed each other, maybe tens of entering sites of friends and acquaintances to their list of recommended links (blogroll), constitutes an obstacle to proper indexing of the content. Not to mention the risk that a certain self-referentiality could weaken the quality of research. "
say that this is very relative since sometimes quotes from other blogs take you to the" small "bloggers to increase its visits.
A tip is to not blindly trust the usual guides to how to increase the PR. Since nobody really knows how to calculate the PR.
