1. The webinar discussed the benefits of crowdsourcing user-generated advertising content, including lower costs, brand engagement, and consumer insights. 2. Zooppa was presented as a turn-key platform for running crowdsourced advertising campaigns, with over 75 campaigns completed for clients like Google, Nike, and Hershey's. 3. Best practices for campaigns included defining objectives, offering incentives, promoting participation, and using the submitted content across digital channels.