MSDN – Microsoft Developer Network
Microsoft Developer Network is a set of online and offline resources designed to support application developers using Microsoft products and technologies. It is a comprehensive set of library that includes information regarding past, present and future software and tools.
MSDN comes in form of a subscription with enhanced support that allows developers to move in a right direction while developing a product. It acts as a first line of reference for IT Professional, Database engineers, testers, system engineers, software developers and security engineer who work on Microsoft’s OS, database, server or application.
The MSDN resources can be accessed through a web site, newsletters, developer conferences, trade media, blogs and DVD distribution. The subscription is available at 3 levels: developers, teams, and organizations.