This fabulous info graphic is from Rachel Rofe, an internet marketing colleague. It looks at the main demographic breakdown for each of the main social media sites. While the data is based on America, it is likely to be similar for Australia.
You can use it to investigate which site will be most useful for you to reach your target audience.
Enjoy. And let me know in the comments below what you think. How will you make use of it?
Shine bright.
Kristina