Application of Multiple Content Items and Functionality to an Electronic Content Item

A method of providing application of multiple content items and functionality to an electronic content item;

• comprising:
• receiving a first content item and displaying the first content item in a computer-enabled content user interface;
• providing in the computer-enabled content user interface a navigation user interface component;
• providing in the navigation user interface component one or more navigation controls for allowing navigation in the displayed first content item;
• highlighting a first portion of the first content item for showing the highlighted first portion of the first content item was read by a first user;
• and
• highlighting a second portion of the first content item for showing that the highlighted second portion of the first content item was read by a second user.

A method of providing application of multiple content items and functionality to an electronic content item;

• comprising:
• receiving a first content item and displaying the first content item in a computer-enabled content user interface;
• receiving a selection for inserting a second content item into the first content item;
• displaying the second content item in a user interface component over a portion of the first content item;
• and
• inserting the second content item into the first content item at a selected location within the first content item.