course notes into an innovative medium for advertising that allows companies to publicize their services and products. It is a new communication channel between companies and students. In fact, they place advertisements on the course notes and they use the data provided by students when registering to achieve a high degree of market segmentation.

This way WUOLAH solves the problem of finding free and accurate course notes (rated by students). Moreover, the students that upload their materials to the platform receive a financial reward for their efforts. They also solve the problem of market segmentation for advertising.