MagicBus - Dynamic ride matching and booking for vanpools, shuttles, and other shared transportation
Stretch - Uber for limousines (but it's free)
Chariot - Design and crowdsource your commute with Chariot
BlaBlaCar - BlaBlaCar is a ride sharing service that connects travelers throughout Europe.
Bus.com - Organize charter busses for events
Skedaddle - Buspool to your favorite destinations