The National Library of Australia has kept busy digitising newspapers, and a larger amount is now available in Trove: http://trove.nla.gov.au/
Click on 'Digitised Newspapers and More' to be able to conduct a keyword search or an advanced search. Trove is a free database containing a huge amount of digitised archival information in various formats.
For the Mid West researchers the following papers are now available online:
Geraldton Guardian 1906-1928, 1948-1950. Geraldton Guardian and Express 1929-1947, Inquirer 1840-1855 and The Inquirer and Commercial News 1855-1901.