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.
Active voice is best for most Web content, but using passive voice can let you front-load important keywords in headings, blurbs, and lead sentences. This enhances scannability and thus SEO effectiveness.
Measured usability improved by 44% compared to our last large-scale intranet study. The new research identified 5 times the previous number of intranet design guidelines.
Introductory text on Web pages is usually too long, so users skip it. But short intros can increase usability by explaining the remaining content's purpose.
A site did most things right, but still had a miserable 14% success rate for its most important task. The reason? Users ignored a key area because it resembled a promotion.
Users rarely look at display advertisements on websites. Of the 4 design elements that do attract a few ad fixations, one is unethical and reduces the value of advertising networks.
The more engaged users are, the more features an application can sustain. But most users have low commitment -- especially to websites, which must focus on simplicity, rather than features.
To demonstrate world-class expertise, avoid quickly written, shallow postings. Instead, invest your time in thorough, value-added content that attracts paying customers.