Which Sites in Social Media send the highest referrals Traffic : Facebook vs Stumbleupon vs Linkedin

SOCIAL WEBSITES AND WEB TRAFFIC REFFERAL

The   referral traffic  from social sites is lead by Facebook by a huge margin,  as  around 3%( 2.9) of referral web traffic is sent by Facebook, Youtube and Reddit comes a poor second and third. Facebook has been the largest content sharing social site since the past 4 years as wellLinkedin and Stumbleupon  ranks 5th andf 4th respectively

Together 14 social media sites send 3.4% traffic .. out of which Facebook forms over 97% of referral traffic