"Sun understands the dual-edged sword of blogging: you cannot legislate the culture, you need to get a good infrastructure of how things are done and nurture a healthy community," Wong said.

"The community is very active if it detects a breach of unspoken or spoken rules and blogmasters at Sun are alerted quickly.

"Blogs that reveal corporate secrets or breach confidence are shunned by other bloggers, because there is a lot of self-policing and self-governance."

Microsoft Australia blogger Frank Arrigo said the company's blogging policy is simple: blog smart.

"Microsoft has reached the stage where it is a faceless entity for some people, but blogs allow us to be transparent ; also it isn't written by marketing people and appears complete with spelling mistakes."