Introduction : By the numbers : what's it all about? -- What is marketing's goal? -- Is email the perfect marketing tool? -- What's wrong with email? -- Subscriber engagement : what matters? -- Building a killer database -- Segmenting for relevance -- Finding or creating relevant content -- The role of email in viral and word-of-mouth marketing -- Analytics that matter -- Testing against your goals -- Using surveys, forms, and other feedback tools -- Triggers, transactions, and integration -- Are you a spammer?.