A system and method for incorporating user preferences into a document search is provided. User events are associated with one or more content tags based on a comparison of the user event with locations in a content space. The user events are tracked to provide a user event history. The user event history is analyzed to select content tags that correspond to user preferences. A search query is modified to include one or more selected content tags. The search query is then matched to documents associated with content tags contained in the search query.