Some 800,000 Australians visited the Twitter website in June 2009, a massive 6,122 percent increase on the 13,000 aussies that visited the site in June 2008.
Digital marketing intelligence firm Comscore claims 70 percent of Australian internet users visited a social networking site in June 2009.
Facebook almost doubled its audience down under with six million visitors while MySpace increased its audience by a modest five percent over the same period, to 3.5 million users.
Although a relative minnow, Google's Orkut also performed well with the number of visitors to its site increasing to 252,000 in June, up 607 percent in a year.
Will Hodgman, Comscore's executive vice president for Asia-Pacific, said in a statement that social networking is now "an essential part of peoples' daily online routine, providing a level of engagement and reach that far exceeds most other content categories."
Comscore claims that social networking is now one of the most popular content categories for Australians, with a total of almost nine million users in June.