Jun. 18, 1997) <http://patent.womplex.ibm.com/claims?patent_No.=5208748>.45208748: Method and apparatus for structuring and managing human communications by explicitly defining the types of communications permitted between participants (visited Jun. 18, 1997) <http://patent.womplex.ibm.com/details?patent_No.=5208748>.55216603: Method and apparatus for structuring and managing human cmmunications b