Abstract: Systems and methods enable the creation and delivery of targeted content as well as the delivery of user-customizable content that reflect the user's preferences. Users author posts associated with permissions that restrict access to the content. Users can also create filter settings that control the type of post content viewable by the user. A content provider processes content requests received from a client computing device operated by a user. Data within the content request is processed using query rules and query execution logic to return filtered content that is then formatted and transmitted to the client computing device for display on a webpage.