This document provides tips for successful internet marketing of hotels in Copenhagen. It emphasizes the importance of dynamic testing of marketing campaigns and components like landing pages. Marketers should stay up to date on new technologies and look for new ways to market products to keep customers from getting a negative perception. Tracking tools can assess marketing effectiveness by measuring site visitors and how visits translate to sales. The document provides additional tips like using guarantees to build trust, allowing customer reviews, ensuring marketing objectives are clear on landing pages, and emphasizing customer privacy and security.