What is MSDN and why would I want to buy it?
The Microsoft Developers Network is a family of products aimed at developers. The high end “Universal” subscription is especially useful since you are assured that you are up to date on all MS products and documentation. By “all”, I mean virtually everything Microsoft makes. If you want the Slovenian copy of the Windows 95 OSR2 release, it is in there. At lower subscription levels some products are removed, but even the lowest level subscription includes quarterly CDs that contain the MS Knowledge Base, journal articles, sample code, and other useful things. Some of this information is also available for free on the Web.