Google said:
Today we’ve launched a change to our ranking algorithm that will make it much easier for users to find a large number of results from a single site. For queries that indicate a strong user interest in a particular domain.Here is an example:
You will notice and if you search for the term "apple", almost all of the search results you will get are from the Apple website where usually it only shows either 1 or 2 but now you will see more than 5.
