“PayPal Mafia” is an informal term for the community of American businesspeople and investors centered in Silicon Valley, who were founders or early employees of e-commerce service PayPal before founding a series of other technology companies. The PayPal Mafia are often credited with inspiring Web 2.0, and for the re-emergence of consumer-focused Internet companies after the dot com bust of 2001.
PayPal Mafia on Wikipedia.
