Internet technologies do not stand still, and since the release of the first edition of the Encyclopedia in the field of Search Engine Marketing, many important changes have occurred. We updated and supplemented our SEMBOOK: we accumulated and structured information throughout the entire cycle of marketing work with the site, from attracting visitors from various search channels to returning customers to the web resource; took into account new approaches to promoting business on the Internet, as well as all the important innovations of search engines over the past 3-4 years.