Spam is the largest threat to organic search engines like google and yahoo, whose target is to supply excellent search engine results for key terms or phrases entered by their users. Google's PageRank algorithm update ("BigDaddy") in February 2006—the ultimate phase of Google's big update ("Jagger") that commenced in mid-summer https://multi-theme-interface25813.blogdanica.com/32744579/the-marketing-tool-diaries