Singapore Airlines KrisFlyer sign up bonus
Singapore Airlines' KrisFlyer loyalty program is currently offering a 500 mile sign up bonus until 14 April 2017 for new accounts. This offer has been run in the past but hasn't come up frequently in recent times to my knowledge.
The bonus is available on the Singapore Airlines website by using promotion code "JOINKF2017" when signing up.
I consider KrisFlyer to be a very valuable program for Australian travellers with excellent award redemption options and plenty of opportunities for earning KrisFlyer miles within Australia on credit card and hotel spend. If you haven't already got an account I recommend you take advantage of this sign up bonus.