A wiki may very well become a filing system. Mark-up is natural. It even provides a navigation system. The versioning system is quite terrific.
But a wiki depends upon its community. Strangely enough, it has a tough time embedding discussions. Naming schemes a page choices can become incoherent, even when the main topic remains quite specific. Editorial power struggle usually ensues.
A blog might very well become an annotating system. It can show links that one stumbles upon. It can incorporate a commentary system. Trackback is kinda cool.
But it can't be anything else than a system to publish periodically. Posts are read as personal and time sensitive confidences. They should be well-enough thought, since their publication is somewhat definitive.
So wikis and blogs are no serious candidates for a personal working system. It takes too much time to write and save with these toys to be efficient. A simple editor with an emailing system is far more superior. At least for now. And if some still think that a mix of the two should overcome the difficulties, then it may very well never be.
