Capturing knowlegde was often a failure since it was considered as a task by itself and not an “on the flow” activity.
People were asked to take tame to give information, which didn’t work the reasons everybody knwos. What counts is organizing a real time information capture, that’s to say integrated in people’s day to day job in order to make it painless.
The first track that has to be explored is to shift existing flows to tools that make capitalisation, sharing and reuse possible. No additional workload for individual but a gain at the organization scale, as I already said here.
At a first glance, it’s seems to fit perfectly for exchanges about day to day best pratices.