State legislators in Louisiana have expanded the ban on texting while driving to include accessing social media behind the wheel. The law, signed by Governor Bobby Jindal on May 30 and taking effect today, prohibits drivers from using "any web-based service that allows individuals to construct a profile within a bounded system, articulate a list of other users with whom they share a connection, and communicate with other members of the site," with a fine of up to $175 for the first offense and up to $500 for subsequent offenses.