The purposes of this study were to examine: 1)the dimensions of online store attitude; 2)the differences in the online store attitude by product category and store type; and 3)the effects of online store attitude on store satisfaction and store loyalty. Data were obtained from an online questionnaire survey to 850 online shoppers who were randomly selected from the panel of an online survey agency, and 615 responses were analyzed. Factor analysis extracted 5 dimensions of store attitude including: process and security; service; promotion and presentation; price and quality; and merchandise. MANOVA revealed a significant difference in the price and quality factor by product category and store type. Multiple regression showed that the effects of price and quality, service, and process and security on store satisfaction were significant. Also, price and quality had a significant direct effect on store loyalty which was also affected by store satisfaction.