Rafe Needleman writes about “designing tools that extract knowledge from individual employees and make it available to the rest of the corporation”. He mentions OpenCola, Kubi Software and Tacit. More on Tacit’s ActiveNet:
This product builds profiles of users based on the e-mail they send (it does not store the e-mails), and then allows other users to find co-workers who are knowledgeable in particular fields. But it doesn’t force the connection, because, as CEO David Gilmour says, “What I know depends on who’s asking.” So the system allows the person with expertise to decide if a contact will be made: It just tells them who’s asking.