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Glassboard is a mobile service for sharing privately with groups. With Glassboard, you create 'boards' which are groups of people around a common interest where you can share messages, comments, photos, videos, and even your location (when appropriate).
When the Glassboard team was developing Glassboard, they looked for a platform that offered scale, worry-free operation, replicated data, and privacy for their apps on Windows Phone, iPhone, Android, and Office 365. The Glassboard team chose the Windows Azure platform for these capabilities.
This article provides and overall architecture of the Glassboard backend in Azure.