We all have internal documents to aid our front line staff in areas of support ranging from quick references through to step by step how-to's, however how we provides these documents to our staff will differ. Be that a Blog, Forum, Wiki or other solution...

The question is really what do you use? - we liked the Google wave idea of the workflow/traceability however it's not practical as a solution and a wiki seems second best but is a lot more open than we'd like. Currently we use an in-house software though again it's nice to see what's available before making any changes