On your next road trip, don't let your empty seats go unused. Instead, get paid. The website zimride.com connects people who are going from point A to point B with others who need to get there. Use the site to find passengers who have created profiles to get to know them better. So, for example, if you're driving from New York City to Washington, D.C., you can find other people to fill the seats and get paid to drive to your destination. Carpooling for the 21st century!