The purpose of this study is to examine the determinants of farmers’ participation in informatization activities and the effects of information accessibility on the farm sales earning. This paper considers three variables to capture farmers’ accessibility to information; if a farmer uses computer or not; if the farmer belongs to the village carrying out an Information Network Village Program; and if the farmer participates in any farmers’ organization including producers’ organization. A two-stage model is applied to avoid any endogeneity problem related with information accessibility and farm sales. We found that education level, participating in non-farming activities such as tourism or marketing related activities, the level of regional information infrastructure, and participating in farmers organizations have some positive impacts on the information accessibility of farmers. Furthermore, the enhanced accessibility to information is likely to increase the farm sales earnings, while the effectiveness of information on farm sales earnings seems to decline as the size of farm sales earnings increases.