All businesses in the 21st century are experiencing major disruption by new players that are challenging older business models. New entrants are coming up with new online enabled models that are seriously competing with the traditional businesses. The top 3 technology enablers of the 21st century are the Cloud, Digital Marketing and the Internet of Things. This article demystifies those 3 technologies and gives a high level overview of each. Feel free to comment and do not to hesitate to contact me for more details.