Links
Institutions

Australian National University  Mathematical Sciences Institute
Australian National University  Department of Theoretical Physics
Australian Mathematical Society
Australian Mathematical Sciences Institute
Australian Institute of Physics
Institut Henri PoincarĂ©
The (infrequently updated) group blog I run with a few fellow ANU maths students
There's also the (infrequently updated) science/mathematics blog I run for a general audience
Journals/preprints

arXiv
MathSciNet (subscription required)
Scopus (subscription required)
Stack Exchange