SFGateWhy controversial Uber is just the beginningCNBCHeaps of cash—and criticism—are being thrown at the darlings of the sharing economy including transportation start-ups. The latest example is San Francisco-based Sidecar, a ridesharing app, which raised $15 million in another round of funding Monday ...Richard Branson backs ride-sharing service SidecarTaipei Timesall 50 news articles »