Moving to a new city and country is an exciting time but it can also be hard to be away from family and friends. Sydney is such a huge melting pot that there are always new people coming and going and it is very easy to make new friends in Sydney.
The website to check out is meetup.com which lists many local groups in Sydney. There are special groups for new expats, travellers and various special interest groups. Every single week there are meetups events to go out for drinks, coffee or sight seeing.
Some recommended meetup groups:
International New in Sydney Group
Sydney Food, Travel and Wine Group