@techreport{ilprints646,
          number = {2004-25},
           month = {March},
          author = {Zoltan Gyongyi and Hector Garcia-Molina},
           title = {Web Spam Taxonomy},
            type = {Technical Report},
       publisher = {Stanford},
     institution = {Stanford InfoLab},
            year = {2004},
        keywords = {web search, web spam},
             url = {http://ilpubs.stanford.edu:8090/646/},
        abstract = {Web spamming refers to actions intended to mislead search engines and give some pages higher ranking than they deserve. Recently, the amount of web spam has increased dramatically, leading to a degradation of search results. This paper presents a comprehensive taxonomy of current spamming techniques, which we believe can help in developing appropriate countermeasures.}
}