I'm not so sure how well public wiki's work
I've got a friend who has a public wiki for free MP3 information - about bands which release MP3s for free over the Net. He had so much trouble with spammers putting junk in the wiki that he at one point removed public posting/editing and made it password protected. Later, he opened it up again but the issue was that most people didn't know how to format a wiki entry since except for simple text, all wiki entries use some form of arcane markup that makes it difficult for a novice to make a properly formatted entry
He got around that particular hurdle by asking me to build an additional app for him which provided a form for the data entry (this was straightforward static information) and my code did the actually entry formatting and insertion. Seems to work fine for him
On a private/personal basis, I've had much better luck with wikis
My current employer uses a wiki for the employees to share information about certain procedures, tips etc. All the schedules information, employee contact information etc. is also kept in the wiki. From an information management and accessibility standpoint, this is ideal since you can edit your own information instead of waiting for somebody (say in HR) to edit your contact information. The biggest problem I've seen with that particular system is that information is not updated sometimes in a timely manner. For instance, our schedule information is like 3 months behind and some schedules have not been updated since last year
But that is mostly a management issue and not a failure in the wiki system itself.
I just started using a personal wiki for information management. I'd been using a treeview based information management app all this time but the more information you accumulate, the harder it is to find any one bit of information since in a treeview, you still have to know which node or branch contains the information you want. Information management becomes even harder because the same bit of information might fit on two different nodes depending on how you structure things. (Incidentally, if you're interested in a more detailed discussion of this particular problem, I have a blog entry from a couple of days ago which goes into more details
) So, I thought to look for an information management tool which used tags or keywords to help you identify the exact bit of information you need quickly and easily. That was when I stumbled upon
personal wikis. OK, fine, I didn't actually stumble upon them since I did know of them before that but I did take a closer look this time
I found several interesting personal wiki options but the one that's my favourite so far is
TidddlyWiki.
It is a simple HTML page. You just open it in FireFox or IE and you immediately have access to your own wiki, right there on your desktop! No installation, no fuss, no muss
In fact, I just love the concept due to how portable it is and because it is just one file. You can even carry your own wiki around on a USB drive
The drawback? The same issue as any other wiki - you have to remember all the different formatting rules since there is no WYSIWYG editor in there. But then again, somebody might come up with that soon enough ....