A dicussion from real people: km in iT dept.
Slashdot | Knowledge Management for an IT Department?: "Laurentiu asks: 'In every IT department out there there's a wealth of heterogenous information floating around: code snippets, HOWTOs, FAQs, docs, spreadsheets, post-it notes etc. Asking Joe where he put that file won't work forever. So what is, in your experience, a good way to manage this knowledge? And what software would you recommend for such a task?'"