Digital marketing utilizes digital technologies like the internet, mobile apps, and display advertising to market products and services. It allows companies to create, accelerate, and transmit value from producer to consumer through digital networks. To develop an effective digital strategy, companies must define their online value proposition, select target markets and personas, and review their marketing mix of the traditional 4Ps - Product, Price, Promotion and Place - or the expanded 7Ps. Common types of digital marketing include SEO, SEM, social media marketing, content marketing, affiliate marketing, influencer marketing, email marketing, viral marketing, and mobile advertising.