OpenGL

The Industry's Foundation for High Performance Graphics.

http://www.opengl.org/

DirectX SDK

Overview
This DirectX SDK release contains updates to tools, utilities, samples, documentation, and runtime debug files for x64 and x86 platforms. 

For additional information please see Microsoft DirectX Developer Center along with reviewing the Readme for last-minute updates.

Users wishing to install the DirectX runtime for the purposes of playing a game should instead install the DirectX Websetup. See related resources at the bottom of this page.

J2EE

Java Platform, Enterprise Edition (Java EE) 6 is the industry standard for enterprise Java computing. Utilize the new, lightweight Java EE 6 Web Profile to create next-generation web applications, and the full power of the Java EE 6 platform for enterprise applications. Developers will benefit from productivity improvements with more annotations, more POJOs, simplified packaging, and less XML configuration. 

http://www.oracle.com/technetwork/java/javaee/overview/index.html

Apache Server

The Number One HTTP Server On The Internet
The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems including UNIX and Windows NT. The goal of this project is to provide a secure, efficient and extensible server that provides HTTP services in sync with the current HTTP standards.

http://httpd.apache.org/

MySQL

The world's most popular open source database.

http://www.mysql.com/