Richard Butler discusses low cost digital marketing methods to increase profits. He explains that traditional marketing like yellow pages ads are becoming obsolete as consumers increasingly use the internet. Butler then summarizes several effective and low-cost digital marketing strategies like optimizing a company website, email marketing, blogging, pay-per-click ads, online press releases, videos, and social media to attract new customers, strengthen relationships with existing customers, and increase sales and profits. Measurement of results is important for determining which strategies provide the best return on investment.