Embodiments of the invention provide systems and methods for a collaboration environment in which a number of different workspaces can use the same, reusable content. According to one embodiment, a method of providing collaboration using reusable content can comprise identifying a content item to be included in a first workspace of a plurality of workspaces of a collaboration environment. A first proxy representing the identified content item can be created. The first proxy can have a unique identifier within the first workspace. A mapping table record can be created for the first proxy that links the first proxy to the content item. Additionally, a cross-reference table record can be created for the first proxy. The cross-reference record can identify a relationship of the first proxy to another content item in the first workspace.