Jakob Nielsen, Ph.D., is a retired principal and co-founder (with Dr. Donald A. Norman) of the Nielsen Norman Group. Jakob established the "discount usability engineering" movement for fast and cheap improvements of user interfaces and invented the heuristic evaluation method.
Different traffic sources imply different reasons for why visitors might immediately leave your site. Design to keep deep-link followers engaged through additional pageviews.
The 1% of websites that don't suck can be made even better by strengthening exceptional user performance, eliminating miscues, and targeting company-wide use and unmet needs.
Should the OK button come before or after the Cancel button? Following platform conventions is more important than optimizing an individual dialog box.
Lists of links are an intermediate case between content-embedded links and menu items. Showing listed links in blue or in the site's main link color is the recommended design - and the one most intranets follow.
Bad content, bad links, bad navigation, bad category pages... which is worst for business? In these examples, bad content takes the prize for costing the company the most money.
