Press Release – Windows 8.1 is available now
Windows Blog – Windows 8.1 now available!
Windows 8.1 Product Guide (PDF)
Meet Windows 8.1. *Ahem*: “Built for touch PCs and tablets”
Windows 8.1 in detail
iPad vs. Windows “Do you still think I’m pretty?”
Top questions
Search, touch, & mouse
Update to Windows 8.1 from Windows 8
Upgrade to Windows 8.1 from Windows 7
Got any official Microsoft Windows 8.1 links to share?