Since 2011 https://www.australiavisa.my/ is providing an ETA visa for both business and tourists. Australia ETA is an electronic travel authorization that allows travelers to access entry to Australia. If you do not have an ETA, you will be denied from getting a boarding pass from the airlines. https://www.australiavisa.my/ is owned by iAdventure Escape Tours and Travel Sdn Bhd which is a famous travel agency based in Kuala Lumpur, Malaysia. They also provide many other online and offline visa services.