I’m the first person to jump on Jakob Nielsen when he says stuff that’s just obviously wrongheaded, but I do think that he has some insight into the world of usability testing. For example, if you’re not already doing usability testing on your site, you might benefit from reading Why You Only Need to Test With 5 Users. rc3.org Daily went through all of the usability testing I could afford under my project budget. In other words, I walked around my office and asked some people what they thought of the design.