Earlier this week Microsoft's Australian branch launched a controversial campaign to attract new users to it's recently launched Internet Explorer 8 browser.  It basically involves an online treasure hunt for $10 000 AUS, conducted via Twitter, the catch being that you needed to be using IE8 in order to be able to uncover the prize. The clues are released either daily or twice daily, there's no indication as to when they will stop however the competition closes on September 15 so I suspect it will be a few weeks before this date.