Patent ID: 8918711

Claim:
An electronic media reader comprising: an input device for receiving input from a user; an output device for providing output to a user; memory comprising: enhanced electronic material comprising primary content that includes a number of primary content units and embedded markup tags, the markup tags identifying primary content units that have secondary data associated with them; electronic supporting data comprising primary data elements containing pointers to secondary data elements by category and secondary data elements containing category-specific content; instructions; and a processor, when executing the instructions: formatting enhanced electronic material for display by the output device; displaying a portion of the enhanced electronic material on a first portion of the output device, the displayed enhanced electronic media including a plurality of primary content units; displaying a plurality of icons associated with categories of secondary data on a second portion of the output device, each icon being associated with a different category of secondary data; associating primary content units with secondary data category icons; monitoring user input received through the input device; determining whether a request for a category-specific secondary data element associated with a displayed primary content unit has been received; and displaying the requested secondary data element on a specified portion of the output device if a request for a category-specific secondary data element associated with a displayed primary content unit has been received.