Bobbi Althoff, 27, was on a mission to make money. She missed the wave of “O.G. Youtubers” who’d started the trend of building brands—and profitable businesses—online. She couldn’t let an opportunity ...

After earning a master’s degree in information science from Cornell at 23, Jenny Lei planned to enter consulting. But there was one problem—she could never find the perfect bag for the office. So, in ...