Affiliate Marketing Secrets

I am looking to apply for an ABN because it is necessary to have one to receive payments from various affiliate marketing websites.
I am not sure what to put this business under. It asks if I have an enterprise established in Australia.
What is the deal? Does a website count as an enterprise?
There are supposed penalties to giving incorrect information in this form so I want to get it right. At the same time this is made as confusing as possible so it isn’t really fair that penalties apply.