It was once a common belief that if employees worked hard, showed up on time, and followed the rules, they would be guaranteed a job for life. However, there have been changes in the world of work over the past decade. There are two main causes of this change. Changes in the workplace in the twenty-first century are caused by technological advances and the expansion of globalization through the Internet. Technological progress around the world is a major cause of changes in the workplace. For example, advances in computers are amazing. Mainframe computers gave way to personal computers, then laptop computers, and now portable tablets. The results of a study conducted by IDC, a market research company, showed that by 2015 more people will connect to the Internet using tablets, smartphones and other mobile gadgets than those who use the Internet via their desktop computer (Schroeder) . Mobile phones have also seen a revolution becoming faster, more efficient and more feature-rich. You can even check your email while commuting to work using a portable device. A fact sheet from Nielson outlining the usage of various devices in America shows that “there are 223 million cell phone users over the age of 13 and 25% of mobile devices sold during the third quarter of 2009 were smartphones. It is estimated that this percentage will rise to 40-50% during 2010” (Heimbuch). Individuals can message, update status, tweet or contact others seamlessly via mobile devices that can fit in their pockets. Even the printed word could become obsolete according to Aaron Bradley, as highlighted in his online article titled “A modest proposal for newspapers in the 21st century.” In his article, he discusses how newspaper printing is… at the center of paper… in the new “flat world” individuals must figure out how to become “untouchable”. He explains that “untouchables are people whose work cannot be outsourced, digitized, or automated” (184). He explains that in a “flat world” there is no longer a job based solely on geography, but rather, in most cases, an available job “will go to the best, smartest, most productive, or cheapest worker, wherever he or she resides” ( 183 ). He goes on to demonstrate that companies and individuals today must look at the global picture to succeed (183). The workplace has changed over the centuries. Technology and globalization are the causes of the changing world of work in the twenty-first century. Who does what works, when, and how will continue to evolve as technology becomes more advanced and communication around the world becomes more fluid.