1. A method of retrieving electronic documents comprising the steps of: identifying a selection of a first associative object associated with a first set of electronic documents; identifying a selection of a second associative object associated with a second set of electronic documents; deriving a third set of electronic documents based upon at least one predetermined operation performed upon said first set of electronic documents and said second set of electronic documents; and, presenting said third set of electronic documents within a user interface responsive to said deriving step.