There are many types of digital marketing services that businesses can use to reach their target audience and achieve their marketing goals. Some of the most common digital marketing services include:

1. Search Engine Optimization (SEO): This involves optimizing a website to rank higher in search engine results pages (SERPs) for relevant keywords.

2. Pay-Per-Click (PPC) Advertising: This involves placing ads on search engines or other websites and paying each time someone clicks on the ad.

3. Content Marketing: This involves creating and distributing valuable, relevant, and consistent content to attract and retain a clearly defined audience.

4. Social Media Marketing: This involves using social media platforms to connect with customers and promote a business.

5. Email Marketing: This involves using email to send targeted messages to a company's marketing list.

6. Mobile Marketing: This involves using mobile apps, SMS messaging, and other mobile channels to reach customers.

7. Marketing Automation: This involves using software to automate marketing tasks, such as email and social media marketing.

8. Influencer Marketing: This involves partnering with influential people in a business's industry to promote its products or services.

9. Video Marketing: This involves using videos to promote a business and its products or services.

10. Affiliate Marketing: This involves promoting someone else's products or services in exchange for a commission.

Which of these services are most relevant for your business will depend on your marketing goals and target audience.