9. A computer-implemented method of claim 1 , further comprising, receiving a statement that requests at least a portion of said compound document; and in response to receiving said statement, the one or more computing devices expanding at least one link of a certain subdocument of said plurality of subdocuments by replacing the link with content of said certain subdocument.
10. The computer-implemented method of claim 9 , wherein said statement includes an expression that references the parent document and represents an expansion said parent document.