Word processing software uses an interactive word processing interface to provide and maintain links between portions of a report document being edited and portions of source documents. This functionality can be natively incorporated within the word processing software or added, such as through a plugin. The word processor creates links between highlighted portions of the report document and source documents or portions of source documents. Links can include unique identifiers stored in a database. Hovering over portions of the report document for which links to sources have been applied causes the source to be displayed and highlighted in a browser interface (and vice versa). The word processing software may also be configured to determine a categorization of the source document or a portion of the source document, and apply that same categorization to the highlighted portion of the report document.