Did you know the above brands were in Second Life? Other than a handful of brands that have graced the page sof NY Times, Wall Street Journal, etc - most have gone unnoticed, and continue to go unnoticed because most brands aren’t harnessing the virtual worlds strategically. A virtual world campaign is more than just ‘build’ - it’s also: position, market, be contextually relevant, easy to find, etc.
(source: http://www.kzero.co.uk/blog/?p=430)