Most newspaper websites allow free searches for items written during the past week. If you would like to search for older newspaper items without paying extra fees, try the Australia/New Zealand Reference Centre on the ACT Public Library website at http://search3.webfeat.org/wf3_actlibr.html.
It includes newspapers such as The Age, The Australian, Sydney Morning Herald, AAP News, Sun Herald, Washington Times and The Times(UK).
The Australian National University Library has a link to news and current affairs sites in Australia and around the world. Go to https://anulib.anu.edu.au/online/reference/news.html .