Reid Hoffman assembled a group of former SocialNet and PayPal coworkers to work on a new concept in the latter half of 2002. In his living room, Reid started LinkedIn in May 2003 and invited 350 of his connections to join his network and set up their profiles. The company first saw modest growth—as few as 20 signups on certain days—but by the fall, it had gained enough traction to draw Sequoia Capital’s investment.
Snapchat
Three college pals, Evan Spiegel, Reggie Brown, and Bobby Murphy, were putting their business prowess to the test. Reggie said, “I wish these images I’m sending this girl would vanish,” during a casual conversation. Even then referred to it as a “million dollar concept” shortly after. After developing the app, Picaboo was introduced. Reggie and Evan later argued, and Evan and Bobby ordered him to leave. They then changed the name to Snapchat.
The thought of having so much advertising on any page irritated Jan Koum and Brian Acton, two friends, and coworkers from Yahoo. Both departed Yahoo in 2007 and took a year to unwind. Both tried to get jobs at Facebook but were unsuccessful. They finally launched WhatsApp in 2009 after many ups and downs, with the explicit intent that their service would never contain any advertising and would have a persistent emphasis on offering a gimmick, dependable, frictionless user experience.
The board members of the podcasting firm Odeo convened a day-long brainstorming session that is credited with giving birth to Twitter. When he was still an undergraduate at New York University, Jack Dorsey pioneered the concept of using an SMS service to interact with a small number of people.