RidePicker.com (live)
This is an internal site I created to offer another option besides Craigslist for long distance ride sharing. It provides the same service, but within a social network. Which helps take the weirdness out of sharing a ride with someone that you know nothing about. The site is a full fledged social network in which you can sign up, create a profile, and connect with potential ride sharing partners. Built on Joomla and a very customized version of Community Builder.