This document discusses the problem of advertising channels being managed in silos, with specialized technology and experts for each channel like search, display, email, and social media. It notes that dollars are moving online rapidly as budgets increase for channels like search, display, mobile, and social. However, managing each channel separately ignores the fact that users consume media across many devices and touchpoints, making it difficult to correctly attribute conversions and allocate budgets. The document argues that technology is needed to break down the silos by calculating credit for conversions across channels to inform optimal bidding strategies.