This document appears to be a slide presentation given by Gennadiy Vorobyov on the topic of SEO. The presentation covers the history of SEO, the current state of SEO, and a concept called "SEO 2.0". It also discusses the processes involved in past and present SEO and the stages of SEO 2.0. The presentation concludes by offering free promo codes for participants of BGSite 2014 on Prodvigator.bg and Ringostat.bg.