I am willing to be your test drive advertiser. My product is international, not solely to Australians - I believe it qualifies. Tip: *This one thing you need to have. Either have a few publishers in order to attract advertisers, or a few advertisers if you wish to attract publishers. I recommend that you do the latter. You could then promote your website stating that you offer immediate sale for their ad inventory. Webmasters may also be interested in price tag incentives, that is how much can they earn being with your service as opposed to another.