document: How people use the web on mobile devices This paper describes a series of user studies on how people use the Web via mobile devices . The data primarily comes from contextual inquiries with 47 participants between 2004 and 2007 , and is complemented with a phone log analysis of 577 panelists in 2007 . We report four key contextual factors in using the Web on mobile devices and propose mobile Web activity taxonomy . The framework contains three user activity categories identical to previous stationary Web studies : information seeking , communication , and transaction , and a new category : personal space extension . The new category refers to the practice that people put their content on the Web for personal access , therefore extending their personal information space .
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