1. A collaborative computing data processing system comprising: a collaborative computing environment executing in a memory of a server formed between different collaborative computing clients, the collaborative computing environment comprising a plurality of collaborative objects; a collaborative information structure document (ISD) stored in the server as a collaborative object, the collaborative ISD comprising an object section and a separate annotations section, the object section encapsulating collaborative objects and also references to the collaborative objects in the collaborative computing environment, the annotations section encapsulating annotations to the collaborative ISD; and, a collaborative ISD interface executing in the memory of the server, the collaborative ISD interface providing access to add objects to at least one of the object section of the collaborative ISD and the annotations section of the collaborative ISD and also providing access to add annotations to the annotations section of the collaborative ISD, where an object added to the annotation section of the collaborative ISD is added as an annotation of the object.