"Knowing how many people visit your site, who they are and what they do while they are there (usage) will help you tailor your site to deliver, share or pull in the information or messages your audiences most need, in the way audiences want to receive and contribute to it. Knowing how easily visitors find what they are looking for and their perception of your site (usability) will help you improve its functionality and the user-experience—encouraging more use of your site. And knowing how well your site meets your visitors’ information needs (usefulness) will help you improve both your content and its organization to meet those needs. This guide provides an introduction to measuring these 3Us together with suggestions about how you can use web analytics, surveys and other instruments to improve the 3Us and ultimately the impact of your website. Examples provide a step-by-step guide to putting this knowledge into practice." (Back cover)