Standard web content search result relevance and ranking is improved by considering certain social reference data, such as the number of times an item of content is shared, normalized for the number of times it is viewed. A system and method for improving the relevance and ranking includes a system and method for tracking the social references and a system and method for operating on search engine results to either re-order the results based on social reference data, re-order the search results based on a combination of the social reference data and the web search engine's ordering, and/or display the social reference data either with the search results reordered or in the order provided by the web search engine. Many different forms of data constitute social reference, including sharing content or a link thereto by email, SMS, posting to a link-sharing site, blog, and bookmarking in a web browser.