The document discusses 7 key trends in website design and development to boost ROI in 2018. These include focusing on a positive user experience through clear navigation and easy to find content. It also emphasizes the importance of compelling, relevant content to drive traffic, as well as having an ongoing SEO strategy with targeted content and strong technical SEO. Additionally, it notes the need for responsive design that works across devices to allow easy access to information on the go, and ensuring security certificates and privacy policies are always up to date.