This research studied the interactivity and cultural differences provided by online versions of daily newspapers. It examined interactivity features on the 116 online versions of South Korean and U.S. newspapers on the basis of users' activities when they read the online newspaper. Within intercultural context, this study found that online versions of Korean newspapers use more "active" interactivity features than do U.S. online versions. However, online versions of U.S. newspapers demonstrated more "inactive" interactivity features than Korean online newspapers. New findings about interactivity and culture in online newspapers are discussed.