From the article:
Wharton legal studies professor Dan Hunter puts blogging right up there with the printing press when it comes to sharing ideas and disseminating information. "This is not a fad," Hunter says. "It's the rise of amateur content, which is replacing the centralized, controlled content done by professionals."
Some other good comments about blogging can be found from Ivan Chew, the Rambling Librarian from Singapore. There are three posts related to getting management support for blogging. Post one here, post two here, and post three here.