I think the same way. Search Google for "wallabies" in either .com, .com.au, .co.uk or .me and rugby.com.au will be in the top 2-3 results, because it is one of the most relevant results. The only time it will not be in the top results is if you do a search from (for example) .co.uk and click the radio button that say's "pages from the UK". So as lightlysalted pointed out, "It's not the domain that matters it's the way you promote it." The only "official" statement I can recall that mentions domain extensions, was Google Q&A's 3rd live chat Oct 2008. Hope that helps. Cheers James