We embrace an alternative type of transportation called slugging, a casual form of carpooling that not only gets passengers a free ride, but drivers a pass to the HOV and HOT lanes. www.sluglines.com is unique because we help improve communication between commuters through our searchable map database, forums and integration with social networks like Facebook, Google Plus, YouTube, and Twitter. Based in Washington D.C., Sluglines gets its name from the long line of commuters you‚ll find waiting at designated slugging…