With the recent penetration of the Internet, local governments as well as local companies are recognizing more and more that transmitting local information to residents through the Internet can contribute to regional vitalization and enhancement of residents' lives. However, residents are not always provided with necessary information in the form on the websites of local governments that provide information in a conventional way or private companies that post only information related to their own company. Local governments can cut costs by entrusting their service to private companies, while private companies can profit from advertising revenues by transmitting administrative information along with private sector information. However, some issues arise from providing local information this way. Our study aimed to identify how residents evaluate the value of local portal sites where both public and private information that had been provided separately, is provided in a single local portal site. Based on a questionnaire survey we conducted in Itami City in 2008, we determined the value of local portal sites to residents and estimated the benefits from information provided by Itami City's local portal site operated by a public private partnership. In our study, we applied several types of conjoint analyses to observe how respondents react to differentiated questioning methods and verify whether the same estimated value of local portal sites was also obtained from the respondents. JFL Classification: C35, R22, R58