The University of Melbourne (and many other researchers across Australia) are undertaking a variety of research endeavours associated with the access to and analysis of social media data sets. Resources such as Twitter are now used for a range of computer science activities especially in the area of machine learning/information retrieval, but many domain scientists now use these resources for their own research endeavours: sentiment analysis, hazard identification and management, engaging young adults in political discourse are just some of the research uses of these resources. At present multiple groups have established their own small-scale social media data repositories, however the opportunity exists to amalgamate these into a larger scale, better managed and ultimately richer research resource and grow this over time. This is the purpose of the Social Media Data Hub. This work draws in a multitude of existing data resources available through projects such as AURIN and several Computer Science ARC Discovery and Linkage related projects involving a range of researchers at the University of Melbourne and across Australia.