Digital marketing is the use of the internet and digital technologies to promote and sell products or services. Some key components of digital marketing include:

1. Search engine optimization (SEO): This involves optimizing your website and its content so that it appears higher in search engine results pages for relevant keywords.

2. Pay-per-click (PPC) advertising: This involves placing ads on search engine results pages or other websites and paying each time someone clicks on an ad.

3. Social media marketing: This involves using social media platforms to promote your products or services and interact with customers.

4. Content marketing: This involves creating and sharing valuable, relevant content to attract and retain a clearly defined audience.

5. Email marketing: This involves using email to send promotional messages to a list of subscribers.

6. Mobile marketing: This involves using mobile apps or SMS text messages to reach customers on their mobile devices.

By using a combination of these tactics, businesses can effectively promote their products or services and reach a wider audience.