Embodiments are directed towards organizing heterogeneous information items as nodes within a graph structure and/or a category, where each information item is implemented as a folder and each information item may be in more than one folder. An information management application residing within a computing device enables a user to integrate various information items of various types and sources using a many-to-many relationship for each information item. Information items include notes, events, contacts, geo-coordinates, hyperlinks such as Uniform Resource Locators (URLs), and messages (including emails, text messages). The application further allows the user to perform a variety of activities on the structure(s) and the information items, including, but not limited to creating an information item, creating one or more structures or relationship between information items, managing various views of the structure(s), and modifying the structure(s).