In a small company I worked for, we decided to put most of the internal writing into our MediaWiki. Project plans, memos, design whitepapers, meeting minutes, v

In a small company I worked for, we decided to put most of the internal writing into our MediaWiki. Project plans, memos, design whitepapers, meeting minutes, vacation plan, internal encyclopedia, FAQs for locally installed tools etc. Earlier, the company had installed a TWiki, which quickly filled up with poorly-named pages. With a mandatory naming convention and readily available copy-paste templates (I wish MediaWiki had MoinMoin-like templates), this was no longer a problem. It worked well for most of those things except for project plans (no way of summing up those table cells). For external documentation however (we offered consulting and engineering for safety-critical software), we used DocBook.