1) Microsoft saw an opportunity to engage customers through social media as Windows Vista lost popularity and customer connection. They launched Windows Live Clubhouse and a social media presence to evangelize Windows and build brand trust through transparent customer conversations. 2) For the Windows 7 launch, Microsoft leveraged their large partner network and beta tester base to make Windows 7 the focus and let the product speak for itself while traditional marketing drove awareness. 3) Over 16 months, Microsoft's social media efforts for Windows 7 generated over 200 million brand impressions in the first two weeks and doubled Facebook fans, positioning Windows as the #1 YouTube sponsor and #3 on Twitter during launch week.