Here are 5 resources I use weekly while dealing with User Interfaces design and User Experience.
One should be able to use those resources and understand a bit more how to address the challenging requests of his/her customers.
Why You Only Need to Test with 5 Users (Jakob Nielsen’s Alertbox) http://bit.ly/Krt8EM
37Signals propose a directory listing the web designer close to you: Sortfolio : Find a great web designer by style, budget, and location. http://bit.ly/kyHacr