1 2 Gyöngyi, Zoltán; Garcia-Molina, Hector (2005), "Web spam taxonomy" (PDF), Proceedings of the First International Workshop on Adversarial Information Retrieval on the Web (AIRWeb), 2005 in The 14th International World Wide Web Conference (WWW 2005) May 10, (Tue)-14 (Sat), 2005, Nippon Convention Center (Makuhari Messe), Chiba, Japan., New York, NY: ACM Press, ISBN1-59593-046-9
1 2 Ntoulas, Alexandros; Manasse, Mark; Najork, Marc; Fetterly, Dennis (2006), "Detecting Spam Web Pages through Content Analysis", The 15th International World Wide Web Conference (WWW 2006) May 23–26, 2006, Edinburgh, Scotland., New York, NY: ACM Press, ISBN1-59593-323-9
