The term first coined at a conference brainstorming session between O'Reilly Media and MediaLive International, which also spawned the Web 2.0 Conference.
X. Zhang, Y. Qu, L. Giles, и P. Song. CHI '08: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems, стр. 677--680. New York, NY, USA, ACM, (2008)