Digital marketing provides a powerful opportunity to showcase your company's expertise. By publishing useful and intelligent content, you can prove that you have relevant knowledge to prospective clients.
By targeting specific keywords and audiences online, you can develop a reputation and an ongoing "conversation" with your prospective clients. Social media can also be a powerful tool for interacting in a personal way with prospects.
Creating and promoting highly-targeted content is a great way to target specific verticals and niches. You can establish yourself as a thought-leader through targeted content and campaigns.
Developing a following online helps expand your audience, and by extension your pool of prospects. Creating content that gets shared can also help dramatically grow your audience.
Digital marketing can be far more cost-effective than other forms of marketing. The ability to granularly target your specific audience and the long-term benefits of organic content marketing can significantly reduce the size of your marketing budget long-term.