По катом список официальных (и не только) твиттеров Microsoft. Может кому то пригодится.

@MSWindows – Announcing Windows 7
@WindowsLive – Official Twitter account of Microsoft Windows Live
@MajorNelson — Major Nelson, a.k.a. Larry Hryb of the Xbox 360 group.
@liveframework – liveframework
@livemesh – Sync, share, and access the information you care about—wherever you happen to be.
@SharePoint – The official tweetstream of the SharePoint product group — managed by @LLiu
@bizspark – Microsoft BizSpark — Software, Support, Visibility
@zunemarketplace – Zune Marketplace is a store for the way you love music, with brand-new releases every week and a huge selection of music in every style imaginable
@wmdev – Windows Mobile
@microsofttag – Microsoft Tag
@ch9 – listen to the cockpit, help us fly the plane
@ch10 – Channel 10 is Microsoft's online community for the technology enthusiast
@ch8 – Microsoft's community for students
@mixonline – Come check us out at www.visitmix.com
@MIX09 – The Next Web Now, pre-empted by @MIX07, @MIX08 and @PDC08
@SiteNamedDesire – Want a copy of A Website Named Desire? This li'l birdie will tell you how. Wait for the tweets.
@MicrsftTech4All – News from Microsoft Accessibility team, which strives for technology to be usable by everyone & complements our physical & cognitive abilities.
@MSDN – Updates from the MSDN site team.
@adCenterBlog – News, Tips, Tricks & Best Practices From The Guys At Microsoft adCenter

Список твиттеров Microsoft Украина

P.S. Есть желание еще собрать твиттеры сотрудников Microsoft Россия (а также других известных компаний), любая помощь или совет приветствуется.

Microsoft и Twitter