The web site that has illustrated characters to navigate information pertaining to unfamiliar issue such as high-level radioactive waste geological disposal is an effective method. However, since the information was provided mainly from a pro-nuclear power generation group, it resulted in frustration for the web site user because viewpoints outside the group were not considered nor the explanations were based on only rational aspects, the persuasive explanation based on technical viewpoints in other words. To close this communication gap, this research aims to enhance a better sense of involvement and social collaboration by creating an interactive communication model promoting emotional acceptance and independent thinking with Web system. This purpose was accomplished by the dialog-mode explanation and the scenarios with norm activation theory supported by facial expressions of the illustrated navigators to stimulate the emotional involvement of viewers and the specialists' reliable response on the electrical bulletin board system, then we conducted preparatory experiments concerning its effects and assessed its affectiveness by making this model available over the Internet. (C) 2007 Elsevier Ltd. All rights reserved.