Email and search marketing eclipse online display ads as the most prominent elements in the interactive marketing mix, while social media — like blogs, podcasts, RSS, social networks, and online video — are strong up-and-comers. But mobile and game marketing are relatively ignored. Why? Marketers won't adopt until they see proof that emerging channels work. Our advice? Start adopting now to keep up with your customers who already actively use emerging technologies. Advanced online ad targeting, RSS, and blogs provide the easiest entry points.