Advertising too is likely to start relying more and more on freelance talent to be assembled for creative projects ad-hoc.

FORBES: Honey, I Shrunk The Agency

Meanwhile, three-year-old Code For America, a nonprofit that recruits experienced coders nationally for projects like building databases for local governments, has expanded its annual fellowship program from three to nine projects and last year launched a broad "brigade" of volunteer techies to work on ad hoc civic programs.

WSJ: Beyond the Three R's: Push to Teach Coding at School