
Usability and Technology Evangelist Blog here.
Steve Krug is a usability expert and author of the usability classic Don't Make me Think: A Common Sense Approach on Web Usability. I encourage all who believe in usability to visit Steve Krugs blog. Read it in his good

Also read How We Really Use the Web, the 1997 classic by Jacob Nielsen How Users Read on the Web and Growing a Business Website: Fix the Basics First.
Together, they are an MBA in usability.
Enjoy.
For an example of good usability in how to make a product, see MAKE: Technology on Your Time.