Hosting a website featuring non-downloadable software for tracking and monitoring the results and effectiveness of advertising campaigns; hosting a website featuring technology that enables users to measure the effectiveness of advertising designs based on audience engagement, measure sales and other types of engagement by audience of advertising campaigns, and view data, statistics and analytics related to online advertising campaigns; hosting an interactive website featuring technology that allows users to collaborate with others on advertising and marketing campaigns, and transmit artwork and other media for use in online advertising campaigns