SGM August 2013 Weekly Message One: “Why Introverts & Extroverts Need Each Other” SGM August 2013 Weekly Message One: “Why Introverts & Extroverts Need Each Other” By Kevin Schoeninger | August 1, 2013 | Comments 0 Comment OOPS!? Please ensure you are logged in. Perhaps you don't have access to SGM's Back Issues? If you're a Full Member, you can learn more and purchase the "Back Issues" membership from here. Username or E-mail Password Remember Me Forgot Password