00487nam a2200121Ia 4500008004100000100001400041245012800055245003000183260000900213300002900222440003000251650008400281171207s9999    xx            000 0 und d  aLu, Weixu  aBeyond the power of networks: Differentiating network structure from social media affordances for perceived social support   cWeixu Lu, Keith N Hampton  c2017  apages 861-879, June 2017  aNew Media & Societyv19:6  aCore network, Facebook, persistent, pervasive, social capital, audience problem