More and more people perform their daily work outside of physical office spaces and instead rely on home offices and 'third places' to hold meetings and conduct business. This work model is on the rise due to the increasing ease of urban nomadism, and nomadic work styles are quickly becoming the norm for 'knowledge workers.' Research shows that American workers spend about a third of their time in traditional corporate offices, a third of their time working at home, and a third of their time working from 'third places' like cafes, parks, and libraries. Nomadism is different from the older model of telecommuting in that, although it still offers autonomy, it also offers mobility that allows for a more flexible and gregarious work style. The nomadic work model is possible because of personal digital assistants like the BlackBerry, Wi-Fi hotspots, cloud computing, and the adoption of a universal standard for anything having to do with paper (the portable document format, or PDF). The new concerns over nomadic work models are sociological rather than technological, and problems arise when the old working model and the new working model overlap or collide. Although nomadic working typically offers more flexibility, less travel, and less 'face time,' it also can create more stress. The very fact that nomadism allows for greater autonomy also creates an 'anytime, anywhere' office mentality that drives many people to work all the time and feel inadequate when they do not achieve what they feel they could. This can led to permanent anxiety, reminding us that while mobile work offers flexibility, freedom, and productivity, it may come at a cost.