LinkedIn is a social media site for professionals. This isn’t a direct way to make money, but it’s a great way to connect to your current and potential peers, customers, clients, vendors, and more here. You’ll build a reputation and get in the loop on important developments in your chosen career path and/or industry. One day an old college buddy may hit you up for a dream job you never considered at the exact moment you are looking for a new vocation. Whether you like it or not, keeping your LinkedIn profile current is a great way to get surprised with new work opportunities out the blue.