A wiki is a “pull” information system, where users consult it when they need it. This is typically used to document technical stuff, game design, etc. But often, what you need is a “push” system to get the information in the right hands ASAP. Like when you took an important decision in a meeting. In most cases, this translates to sending an email to a bunch of people. And that’s when it often fails, because someone who should’ve been included in the email wasn’t. Or worse: maybe that person should’ve been in the meeting room, before the decision is actually taken…