Particular embodiments comprise a method for estimating the value of an organic marketing campaign. A computing device receives an identification of one or more entry pages associated with a website, as well as one or more keywords related to the entry pages. The computing device may determine conversion data, wherein the conversion data is based on traffic information identifying visits to at least one of the entry pages, and wherein the visits comprise organic referrals from a search engine. Using the keywords, the computing device may retrieve organic search results from the search engine, and then analyze the organic search results to determine rank positions of the entry pages. Finally, the computing device may identify a correlation between the rank positions of the entry pages, the conversion data, and the keywords.