Abstract: A mount point folder in a collaborative service library may reference contents of a mounted folder that resides elsewhere and includes actual files. File operations may be performed on files inside the mounted folder that may actually live across domains and changes to the contents of either folder may appear in the other. The mount point folder may be represented on the server as a file with .url extensions but in the client user experience, it may be represented as a folder. Mount point folders may be created at a root of a document library or within any other folder of the document library.