Method for advertising or selling products on basis of user's social network service activity

A method for selling a product based on an SNS activity of a product purchaser, the method comprising:

• receiving, by an operation server, discount price information generated by subtracting an SNS advertising price information value calculated as an SNS advertising cost from consumer price information for the product from a product provider device;
• posting, by the operation server, information about the product including the discount price information online;
• receiving, by the operation server, an application for purchasing the product via a user device of each of at least one or more users from the at least one or more users who register SNS interworking information for interworking with at least one SNS server in the operation server;
• if a purchase amount corresponding to the discount price information is paid from the user, paying, by the operation server, a sale amount in which a fee for each product is excepted from the purchase amount to a product provider;
• providing, by the operation server, the product to a user who pays the sale amount and requesting, by the operation server, the user device to share review information associated with the product with another user on an SNS server in which the user is registered, the review information including hashtag information associated with the product and photo information including the product;
• receiving, by the operation server, SNS activity information collected from the SNS server during a time period with respect to the review information from the SNS server;
• configuring, by the operation server, content of persons to experience the product based on at least one of the review information, SNS activity information of the persons to experience the product, and user information of persons to experience the product, the user information being registered in the operation server;
• outputting, by the operation server, a widget generation editing tool for generating a widget through a product provider device based on the configured content;
• generating and outputting, by the operation server, source information for outputting a processed widget on a preview screen and a webpage of the widget generated by processing the content, based on an input of the product provider device on the widget generation editing tool;
• and
• providing, by the operation server, the output source information to the product provider device.