User interfaces such as web pages may be customized in terms of appearance and content based on user interests. For example, information items may be arranged such that items corresponding to strong user interests are displayed in more visually identifiable locations while items corresponding to weaker user interests are displayed in less visually valuable positions. The size of and space allocated to the information items may also be customized based on the relative strengths of the corresponding interests. For example, information associated with a strong user interest may be allotted 50% of the user interface. Other visual characteristics of the user interface and the information items such as font size/style, color, transparency and the like may also be customized to reflect the importance or strength of corresponding user interfaces.