A premium subscription is required to access this article. Article Date: 07/27/2016 How Do Millionaires Use LinkedIn? So you are using Facebook, the world’s most popular social network, to your advantageto connect with clients? You’re not ignoring LinkedIn, are you?Launched in December, 2002, LinkedIn has carved itself a niche as the less social and more professional networking site. It has more than 433 million members in more than ... Log in to view full article. If you already have a subscription, please log in with your email address and password. User Name (Email Address): Password: Forgot your password? Click here to have your password emailed to you. To purchase a premium subscription, please use the links below. One-year premium subscription with unlimited access to all articles including reprint rights (see terms and conditions) for $2,000.00. Monthly subscription (3 month minimum) with unlimited access to all articles including reprint rights (see terms and conditions) for $195/mo.