Fabrício Benevenuto Tiago Rodrigues Virgilio Almeida Jussara M. Almeida Chao Zhang Keith W. Ross Identifying video spammers in online social networks. 45-52 2008 AIRWeb http://doi.acm.org/10.1145/1451983.1451996 conf/airweb/2008 db/conf/airweb/airweb2008.html#BenevenutoRAAZR08