Pilot - Ride Sharing - Fast, affordable and hassle free commute solution
uberCOMMUTE - Carpooling at the press of a button
CARMA - Real-time carpooling / ridesharing
Uber - Uber is a website and mobile app that allows you to get a ride similar to a taxi service from your phone.
Ride - Hassle-free ridesharing app with your coworkers
Stretch - Uber for limousines (but it's free)