Azure is a cloud computing service for building, testing, deploying, and managing applications and services through Microsoft-managed data centers.
Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
Open Graph is a protocol that is used to integrate any web page into the social graph.