SAP
The SAP Design Guild is a site full of user interface and user-centered design resources, created by the business software company SAP.

“User-centered design of business applications is fundamental to SAP’s software approach. Hence the existence of the SAP Design Guild. This Website is dedicated exclusively to demonstrating this commitment and sharing knowledge with the user interface community at large. The SAP Design Guild is a stage for UI people: Here they can exchange information and opinions on visual and user interface design issues. In addition, SAP offers its design resources here, be it style guides, methods, or insights on how a user-centered development process should be carried out and how the mind change within a company towards user-friendly software can be facilitated.”

The site contains a great number of articles, design resources with glossaries, toolkits and ‘cookbooks’, including an entire section on user-centered design, the editions newsletters, as well as ‘design tidbits‘, editorials and stories.