Social media is exploding throughout the workplace, both by companies seeking to promote their businesses and by employees speaking about their jobs. The National Labor Relations Board (NLRB) has increased its scrutiny on what restrictions an employer may lawfully impose on an employee's use of social media. Mark J. Neuberger of Foley & Lardner LLP , discusses current developments in labor and employment law with regard to both employee and employer rights in the social media world.