A method includes performing a first activity with content associated with a first content type selected from the group consisting of television programming, online content, on-device application, search queries, information views, and other content types described using a predefined format, wherein the predefined format includes an action specification and a content specification; logging the first activity in accordance with the predefined format; performing a second activity with content associated with a second content type selected from the group consisting of television programming, online content, on-device applications, search queries, information view's, and other content types described using the predefined format, the second content type being distinct from the first content type; and logging the second activity in accordance with the predefined format.