Database Marketing is foundation of Online Marketing, across all Marketing tactics. Who is your target audience? Who is the one need to know your brand? Dig them out from your database. Below steps and tips for your reference: 1. Build Database. 2. Key Information. 3. Segmentation. 4. Propensity to Buy Model. 5. Keep Data Updated. Details: http://xdxy.com/tips-to-promote-your-brand-by-database-marketing/
Don't forget the core concepts of recency and relevancy. Very essential fundamentals in email or DB marketing.
i think segmentation is when people share the same premise of an idea and have similar products (e.g. Coke & Pepsi).