ウィーク・タイズ

In the paper, Granovetter describes strong ties and weak ties. Strong ties are your family, friends and other people you have strong bonds to. Weak ties are relationships that transcend local relationship boundaries both socially and geographically. He writes about the importance of weak ties in the flow of information and does a study of job hunting and shows that jobs are more often found through weak ties than through strong ties.

JOI ITO's web
http://joi.ito.com/archives/2003/08/16/jobs_and_the_strength_of_weak_ties.html

まえに『仕事のなかの曖昧な不安』っていう本を書いたとき、いちばん反響があったのは、ウィーク・タイズ(註:たまにしか会わないが互いに信頼する人間同士が形成する、うすいけれどもつながった関係)という言葉だったんです。

http://www.shobunsha.co.jp/html/tyosya/tyosya-2k3-09-2.html