This is a good article at IBM Systems Journal, revolving around decentralized, democratized work processes, like ad-hoc organized knowledge work that relies on self-organization and emergence:
A parallel to the growing influence of end users on business services is found in the democratization of content under the influence of Web 2.0. By democratization, we mean a shift from central control of IT services to a greater ability for end users to help themselves. Blogging and wikis are recent examples of the trend to democratize content.
Explaining the potentials of enterprise social software like wikis, especially in supporting and enhancing established enterprise applications, is currently my main job, this article is a welcome help.