or c) be otherwise closely and substantially connected to the registrant, because the domain name refers to. (i) a product that the registrant manufactures or sells; or (ii) a service that the registrant provides; or (iii) an event that the registrant organises or sponsors; or (iv) an activity that the registrant facilitates, teaches or trains; or (v) a venue that the registrant operates; or (vi) a profession that the registrant's employees practise. Another alternative There also exists the .au.com sub-domain. When you consider that it costs them almost nothing to provide these sub-domains (just like Yahoo can set up mail.yahoo.com, news.yahoo.com) - they are very expensive. They are also confusing, and I do not recommend them .