I am with Google + and many others. I feel that it is crucial to make relationships in this industry. Just like being on this website, you can learn something or come across something that can change your life. Facebook along with LinkedIn helped me make a decision to move to Texas and open a gym. You never know who you will meet or learn to be a life changing event for you. Always keep an open mind and never shrug off advice. I love meeting new people every day. Good luck.