The program is distributed with two other free programs, namely Pajek (written by Vladimir Batagelj and Andrej Mrvar) and Mage (written by Richardson and Richardson). Pajek has nice 2-D graphics and a host of analytical tools, while Mage provides 3-D graphics.

KeyPlayer is free and may be freely distributed. For more information about the program, contact its author, Steve Borgatti, at steve@analytictech.com or +1 978 456 7372. In addition, latest versions of the program may be found at www.analytictech.com .
KeyPlayer is a program for identifying an optimal set of nodes in a network for one of two basic purposes: (a) crippling the network by removing key nodes, and (b) selecting which nodes to either keep under surveillance or to try to influence via some kind of intervention. The two purposes are different and require different procedures. KeyPlayer 1.4 provides two approaches for the first goal, and one approach for the second.

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