Some links that I have found of use:
Brain Tumour Publications and Resources
This site has an Australian focus, with brain tumour information, links, and a web-diary of Marg Strangman's fight with GBM.
OzBrainTumour - The Australian Brain Tumour Discussion Groups
Titled "A Manual for sufferers and carers" this document has a wealth of information and links relevant to Australia.
Vast site with explanations of illness, treatment, and survivor stories.