Uber

David Plouffe's new role at the ride-sharing tech company raises some eyebrows.

Will Uber's latest venture succeed in this growing market?

"Sharing economy" services like Airbnb are wooing business travelers.

For a second there, passengers could find out how they rated.

What it takes to get a pink mustache. Hint: You need a car, you can't be a felon.

Rather, investors are betting they'll change transportation as we know it.

App users can watch their ride fare in real time on their phone.

China is already saturated with similar car-service apps.

Uber CEO Travis Kalanick says cabs without drivers may soon be taking people where they want to go.

Now that California has recognized ride-sharing, taxi companies have to learn how to compete with it