The use of hierarchical list to represent and operate resource structure has been practiced by operating system, for example by Windows Explore of Microsoft Windows, for very long time. However, users are lack of Windows Explore like tools to work on resource structure, such as file system, across world wide web (“WWW”). Present invention has disclosed a technology of utilizing memory bound multi-layered hierarchical list to mirror an actual resource structure and presenting the multi-layered hierarchical list to a user across the Internet during a user session for the user through the multi-layered hierarchical list displayed on an end-user device to access and operate the resource structure.