Google's new Instant Search looks pretty impressive, but isn't officially available on Google's Australian domain right now. Here's some tricks to get it working
As with most Google online products, Google Instant is being rolled out gradually across its operations, so even some US users on the main Google.com domain haven't yet got access and may not see it for a couple of days.
Google said in a press announcement this morning that it "hopes" the service will be added to the Australian site "in the coming weeks", but advises: "People outside the US will be able to use Instant Search through Google.com." In practice, your success is likely to vary even if you try this. I raised this with Google, which says the service should be available via the .com site down under "in the coming days".
Two possible strategies might help you get there quicker. Firstly, make sure that you're signed into your Google account before attempting to access the main Google.com site. Going to google.com will normally take you to the google.com.au site if you're on an Australian internet connection, so click on the 'Go to Google.com' link to access the US site. (Update: the direct address for that option is www.google.com/ncr, as mikelorant pointed out to me on Twitter.)
The second possibility is to use the address www.google.com/webhp?sclient=psy for searching instead. This isn't guaranteed either -- I haven't managed to get it working from Lifehacker HQ -- but it's worth a try. If you do get access, check out our guide to Instant's keyboard shortcuts.