This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com. https://www.wsj.com/articles/SB10001424052748704593604576141350618351030
![Facebook's Growing Web of Frenemies](https://cdn-ak-scissors.b.st-hatena.com/image/square/8775abf53dfc8cc44bc6d063e2349de02aed7c27/height=288;version=1;width=512/https%3A%2F%2Fs.wsj.net%2Fpublic%2Fresources%2Fimages%2FOB-MO314_0215zu_G_20110215125105.jpg)