At the very inception of the Scientometrics with its sister disciplines-Informetrics, Bibliometrics, and Webometrics/Cybermetrics (referred to as simply SIBW disciplines), they have been made a great progress. Firstly, the history of SIBW disciplines is reviewed as the following three stages, that is, origin and pioneering period (1917—1939), foundation and formation period (1939—1969), and named and booming period (1969—2011). And then the annual distribution of the number of SIBW disciplines literatures during the 1975—2009 is statistically analyzed; the structural and data relationships within the SIBW disciplines are examined from all angles. Furthermore, the recent expansion of SIBW disciplines, their research frontiers, and hotspot area are also discussed by scientometrics and knowledge mapping, the forefront trend of the SIBW disciplines is confirmed through the measurement for two authoritative journals in the field. Finally, the internal relations, common laws, and unified theory of the metrics multi-disciplines are prospected.