Segment generation describing usage patterns is described. In one or more implementations, user interaction with a browser is monitored to navigate through a plurality of web pages using a computing device. Data is extracted from web documents associated with the plurality of web pages automatically and without user intervention by one or more modules of the computing device, the data usable to describe a usage pattern involving the navigation through the plurality of web pages. A segment is generated which describes the usage pattern automatically and with user intervention, the segment configured to identify the usage pattern to target content.