Robin Good, recently wrote an article on Personal Knowledge Management Tools Ready For Enterprise Use. Here is an excerpt.
"Personal knowledge management is making strong inroads into enterprise environments where individual users can be motivated to publish quality (commercial) information effectively and with the ease that "bloggers" enjoy.
"Be it wikis, weblogs, messaging systems or new forms of publishing, personal knowledge management has taken content into new enterprise environments that attract people who want to share information effectively for profit with the ease that people doing it for fun on the Web enjoy. When anyone from any enterprise could be a part of this collaborative publishing environment it’s time for publishers to examine more closely how their content can be central to these highly productive user/publishers."