A display-data generating apparatus obtains reputation information indicative of reputation of a subject and extracted from a text accessible via a network, and linkage information indicative of a linkage between texts, and couples the reputation information and the linkage information to obtain the linkage between the texts associated with the reputation information specified from each of the texts. The display-data generating apparatus determines a display mode of a first mark that symbolizes the text and a second mark that symbolizes the linkage based on the reputation information corresponding to the text, and generates a display data to display the first mark and the second mark in the determined display mode.