The best way is intergrate PostRSS social network tools to your social pages and make your website posts automatically posted to Facebook, Twitter, LIkedin, Vkontakte…
How to setup PostRSS? – http://postrss.com/how-to-setup-postrss/
How to Synchronize your Social accounts with PostRSS tools – http://postrss.com/how-to-synchronize-your-social-account-with-postrss-apps/