With thanks to Kris Dunn and Ed Frauenheim, I coined the term "contigent fringe" to decsribe the rise and increased positioning of workers who spend time working for an organization in a seemingly traditional way, but are not considered "on the books" when it comes to traditional measures. More and more organizations are moving away from hiring 'regular' employees and are moving toward one-off relationships with individuals who make up the contingent or contracted ranks. The fringe factor refers to the distance and intimacy (if I can use that word) in the relationship. Organizations need talented peole and talented people need organizations. Look for the fringe to become the new mainstream.
http://www.hrcapitalist.com/2012/08/hr-slang-contingent-fringe.html
http://blog.greenkeyllc.com/2012/08/the-growing-contingent-fringe/
http://regator.com/p/257016281/hr_slang_contingent_fringe/
http://www.workforce.com/section/contingents