Incorporating web 2.0 behaviors (e.g. recommending, commenting, social bookmarking) into the array of valid reserch metrics is a long work in progress...
One of the many comparative studies in the field of business and management which point to the conclusion that to see the full impact of HBS faculty article output (as judged by citations) needs to take into account GS (Harzing's), WoS and Scopus.
VOSviewer, a freely available computer program is used for
constructing and viewing bibliometric maps. Unlike programs such as SPSS and Pajek,
which are commonly used for bibliometric mapping, VOSviewer pays special attention to
the graphical representation of bibliometric maps. (Journal impact analysis)