David Nicholas 
Assessing Information Needs [PDF ebook] 
Tools, Techniques and Concepts for the Internet Age

Provides a systematic method of identifying, evaluating and comparing information needs, as well as a framework to enable information services to gather information from users to aid information system design, and monitor the effectiveness of an information service. Examines the role of the Internet in meeting information needs.The section on collecting data now includes web log analysis and focus group interviews. Introduces the concept of the I-player, the digital information user.