A webcast is an enterprise-grade, online event that streams video, audio and visuals – such as slides – to large audiences across the world. Webcasts can vary greatly based on their overall scope and typically fall into two categories: managed and self-service. For a managed webcast, the service provider handles everything from logistics, filming, broadcasting and more while self-service webcasting offers individuals or businesses access to enterprise-grade webcasting, publishing, editing and analytics tools so they can host their own webcasts using their existing technology infrastructure.