Chris Anderson (Wired, The Long Tail) has been writing recently about corporate transparency and, in particular, the impact of blogging on the tradition of corporate secrecy. Check out In Praise of Radical Transparency, Radical Transparency and National Security, What would radical transparancy mean for Wired? (Part 1), ditto (Part 2), and Transparency reaction, all in his blog, The Long Tail.
Update 17 Dec. 2006:
Jeff Jarvis adds some interesting comments on Anderson's posts at BuzzMachine. --Dennis