This is still a nascent genre. According to the International Legal Technology Association (ILTA) 2008 Law Department Survey, when asked which packages they use, three quarters of the 45 respondents said “none.” And these were mostly large companies with large law departments.
The software used by the remaining quarter of the departments includes Boardvantage (11% of the respondents), Computershare Boardworks (5%), 80/20 Leaders/online (2%), Virtual Boardroom and Diligent Boardbooks (0%), and “Other” (5%) (See my post of July 19, 2006: Board software with two other vendors mentioned; and March 9, 2007 #1: more on software to assist Boards.).