These days most Australians use the internet to find the things that we need.
Google likes to refer websites that are well 'linked' with other websites of a similar nature. The concept is that when you use Google you find not only what you are searching for, but also websites that provide many useful links to and from sites with related subjects.
The only surprise to me is why this did not happen earlier... years ago? It had to happen! For many years I have been analyzing just how Google chooses web page's to refer to the top of its results page.