Abstract: Approaches provide for analyzing document data to provide contextual overlays. For example, an application executing on a computing device (or at least in communication with the computing device) can analyze document data to determine a set of keywords based on features extracted from the document data. The keywords can be used to query an index of websites based on a relevance function in order to determine websites that are most relevant to the text identified from the document, at least some of which can be analyzed using a search engine to identify contextual information in the websites associated with the document. Thereafter, the contextual information can be provided for display with the document.