Azure Content Spotlight – Azure Cosmos DB
Azure Cosmos DB is Microsoft's globally distributed database service designed to allow customers to scale throughput and storage across any number of geographical regions. The main issue Azure Cosmos DB is targeting is to allow the development of internet-scale, global applications with low latency, high availability and consistency.
For a great introduction to key points about Azure Cosmos DB, see Azure Cosmos DB: The industry’s first globally-distributed, multi-model database service and A technical overview of Azure Cosmos DB. Pricing is based on storage and throughput.