This introduction to the book discusses how the topic of competencies for nurses in a world of connected health needs to be addressed at the curriculum level to achieve the specific competencies for various roles, including practicing nurse, nurse teacher, nurse leader, and nursing informatics specialists. It looks back at milestone publications from the international Nursing Informatics post conferences that still serve a purpose for inspiring developments today and looks forward to the way nurses can use connected health to improve the health and health care for their patients. Specific emerging topics in health information technology are addressed as well, such as semantics, genetics, big data, eHealth and social media.