The Linux Documentation Project is working towards developing free, high quality documentation for the Linux operating system. The overall goal of the LDP is to collaborate in all of the issues of Linux documentation.

This site provides all of the latest Hewlett-Packard Enterprise server and workstation technical documentation. It contains manuals, white papers, and tutorials for hardware, software, HP-UX and MPE/iX operating systems.

The Open Group works towards enabling access to integrated information within and between enterprises, based on open standards and global interoperability. It is a vendor-neutral and technology-neutral consortium that works with customers, suppliers, consortia and other standard bodies to capture, understand and address current and emerging requirements, establish policies and share best practice

Tutorial-Index: Your best source for free online tutorials - Photoshop, Flash, Adobe, PHP, video, HTML, SQLMySQL, 3d, ASP - the most useful collection - complete text, pictures, and video tutorials - enjoy, and add your own tutorial here!

O'Reilly spreads the knowledge of innovators through technology books, online services, and tech conferences. Find the technology resources you need at O'Reilly Media, a technology company at the leading edge.

MKS Software - A leading provider of Windows emulation software for system development and administrators in a Windows or mixed UNIX / Linux and Windows environment. Supports Windows 7.