Lessons Learned
http://www.usability.gov/lessons/

Usability.gov

Abstract:

Examples and case studies from Web sites/applications that have been through the usability engineering process. Lessons Learned is a compilation of real-world examples of what works on Web sites/applications that have been through the usability engineering process. Each example has its own special problems and may target different audiences, but many of the points we have learned apply to Web sites/applications in general. These lessons provide a practical solution to real-world problems about collecting user data and designing, testing, and improving your Web site/applications.