One aspect which has to be thought through are read/write/edit permissions. The Wiki we use internally is completely open to everyone. I think some kind of moderation and/or editorial control would be appropriate, but I’m not familiar with what the Wiki (or other tools) afford.
After support for tables, and probably file uploads/attachments, the number one thing people seem to want with Wikis is permissions for users.
If the Wiki is not behind a firewall — as is the case above — then I have a feeling that desire is, well, “right” in the sense that it should be satisfied. Behind the firewall, of course, there’s not much of a need for editorial control. At the very least, if an employee does something malicious, you just restore your backups, track-down, and then wrist slap the offending employees.
Link found at ScriptingNews.com.