Virologist Ijad Madisch launched ResearchGate, a social network for scientists, three years ago in the hopes of bringing collaboration into the digital age. It took off rapidly and now boasts more than 2 million members, around 100 employees, and venture capital funding from PayPal cofounders Peter Thiel and Luke Nosek. Members can create profiles featuring their research, seek scientific collaborators, and share news. In August 2012, ResearchGate debuted its most disruptive feature: an alternative to the traditional process of peer review. The network now features a reputation score that allows members to review the contributions and input of other scientists. Madisch’s ultimate goal is to overturn the journal system that has served science for centuries and replace it with something more open and responsive.