Danny Sullivan is a Search Engine expert and editor-in-chief for Search Engine Land. According to Matt Cutts and other notable search engine experts Sullivan's blog is a "must read". In addition to his duties as editor for Search Engine Land Sullivan stages six conferences throughout the year. The SES events that focus search engine technologies and strategies.

Prior to becoming editor for Search Engine Land Sullivan created a similar blog called Search Engine Watch. Started in 1997 by Sullivan the website has been sold twice since its inception. Sullivan remained as editor-in-chief until 2006 when he left to form his current blog Search Engine Land. Search Engine Watch was sold to Incisive Media for $43 million in 2006 and continues to run today.