Microsoft has started running ads to try to reverse the bad press that Windows Vista has accumulated this past year. Their new ad campaign points users to MojaveExperiment.
For their "Mojave Experiment", they found people who had bad impressions of Windows Vista but had never used it. They showed the individuals Windows Vista, but told them it was actually a newer version of Windows called Windows Mojave, and recorded their responses.
The ad campaign is part of a larger effort by Microsoft to reverse the negative perception about Vista.