What is the role of social media in your career management? According to Brian Reich, managing director of little m media, and the author of Media Rules!: Mastering Today's Technology to Connect With and Keep Your Audience, leveraging social media is essential for your professional advancement, credibility, and durability. In this CareerCast, Brian shares his knowledge, perspective, and tools to help you realize your career aspirations – career change, entrepreneurship, or advancing within your current field.