Before San Francisco resident Kenny Liao heads to work in the morning, he makes sure to check his smartphone to see if he can pick up any strangers along the way.
"I open up the app before I need to leave, I leave it open and see if someone needs a ride, for the next 10 minutes or so. If so, great, if not, great, I'll head out to work," he said.
The app Liao is referring to is Sidecar, which lets users arrange rides in exchange for money. Liao uses it to check for potential customers, … Read more