The document discusses the significant underutilization of digital channels in co-op advertising, with estimates indicating that less than 1% of annual co-op spending in the U.S. ($50-$520 billion) flows to digital. It highlights the barriers preventing manufacturers from expanding their co-op programs into online advertising and suggests recommendations to encourage digital engagement, including raising awareness, providing education, and developing technology. The online co-op market, while available at $1.7 billion, risks leaving $450 million on the table due to low participation rates and lack of awareness among stakeholders.