Official Google Blog: Introduction to Google Ranking
Google ranking is a collection of algorithm that is used to find the most relevant document of your search.
Google has built the search technology which not only popular but most widely used over internet.
Google uses the same search algorithm in other Google products for ranking.
One of the most popular search is how to get a good Google page rank .
So, the philosophy behind Google ranking is:
1.Best locally relevant result served globally.
if you are in a particular country, you will get search results best suited fir that country or region and most relevant.
2.keep it simple.
3.No manual intervention.
Google don't have any intervention in the auto technology which gets all the job done. its the technology designed that give ranking. But Google do take action against website that violates the policies e.g, legal requirement
stay tune for Google going to discuss a lot more on its search technology