Abstract: A method of combining information about student enrollment in classes and student behavior, to be targeted as an audience for the display of advertisements and other information. Advertisement slots may be sold, either for a predetermined price or in connection with an online auction format, Advertisements can be displayed using multiple modes of communication—including, but not limited to, projection within classroom, via the Internet or through a mobile device. Advertisers can to “bid” on advertising space in “real-time” thus creating an instantaneous marketplace for targeted delivery of advertisements or other information to targeted groups of students.