The world of stable, long-term employment is coming to an end. Part-time, contingent, and contract workers now account for more than 35% of the U.S. work force. It has been suggested that individuals will become "portfolio workers" with "portfolio careers." Individuals will maintain portfolios of their skills, abilities, and achievements and will use those portfolios to obtain temporary assignments in a variety of organizations rather than securing permanent jobs. Downsizing and reorganization are forcing individuals to consider themselves a collection of attributes and skills rather than a job title. The key skills of portfolio workers are as follows: versatility; flexibility; creativity; self-direction; interpersonal and communication skills; facility with computer and information technology; ability to learn continuously; and ability to manage work, time, and money. Many individuals find portfolio work attractive for the freedom and flexibility it affords; on the other hand, there are many part-time workers who would prefer to work full time but cannot do so. In the current work structure, benefits are still tied to full-time employment. Thus, those on the periphery often lack health care, pensions, and similar supports. At present, those most successful at portfolio work appear to be professionals with high-demand or unique skills. (Contains 27 annotated references.) (MN)