Digital marketing is a branch of marketing that uses digital channels and technologies to promote products or services. The main objective of digital marketing is to reach out to a wider audience through the internet and other digital mediums to promote a brand, generate leads, and drive sales. Some of the key components of digital marketing include:

1. Search Engine Optimization (SEO): This involves optimizing website content and structure to rank higher in search engine results pages (SERPs) for targeted keywords. More about it
2. Content Marketing: This involves creating and distributing valuable and relevant content to attract, engage, and retain target audiences and ultimately drive profitable customer action.
3. Social Media Marketing: This involves promoting a brand or product through social media platforms like Facebook, Instagram, Twitter, LinkedIn, etc. to reach a larger audience and engage with them.
   
4. Pay-Per-Click (PPC) Advertising: This involves placing paid ads on search engines, social media platforms, or other websites to drive traffic to a website.
   
5. Email Marketing: This involves sending promotional or informational emails to a list of subscribers to promote a brand, product, or service.
   
6. Affiliate Marketing: This involves partnering with other brands or websites to promote a product and earning a commission for each sale made through a unique affiliate link.
   
7. Mobile Marketing: This involves promoting a brand or product through mobile devices such as smartphones and tablets.