Don't be afraid to discuss negative news on a corporate blog suggests the Four51 blog:
"One of the major downfalls of the corporate blog is the inability to disseminate negative news. If your stock just nose dived, odds are I’m reading about it on CNN, so there is no sense in pretending it didn’t happen on your blog. Your readers will respect your company and hold a high regard for your content if you admit your shortcomings. Let your readers rely on your blog as a source of reliable and accurate information that actually comes from the horse’s mouth."
This reminds of the example of Robert Scoble and Microsoft, who was given the room to disagree with his company, and established his reputation and improved Microsoft's after the court case.
