Smart retailers build relationships with their customers beyond the transaction. Providing valuable content, not just to help them make the right buying decisions, but also to get the most out of their purchases, is a great strategy. But how do *you* know what *they need* to know? We chatted with Anne Cullen, formerly in Editorial Content at Walmart.com, about understanding your customer and important sources of inspiration for content that will deliver value and establish you as a subject matter expert to keep customers coming back.