Nielsen Norman GroupEvidence-Based User Experience Research, Training, and Consulting
What makes a website good will also give it a high SERP rank, but overly tricky search engine optimization can undermine the user experience.
Users pay close attention to photos and other images that contain relevant information but ignore fluffy pictures used to 'jazz up' Web pages.
Showing summaries of many articles is more likely to draw in users than providing full articles, which can quickly exhaust reader interest.
The granularity of user decisions is much finer on the Web, which is dominated by the instant gratification of the user's needs in any given instant. Content must cater to this rapid pace.
To demonstrate world-class expertise, avoid quickly written, shallow postings. Instead, invest your time in thorough, value-added content that attracts paying customers.