Telecom Computer Security Databases Handheld Devices Tech. This results in a time saving - the saved time can be used for creative work. It thus gives you the chance to build upon existing knowledge - verify and test the good experience of others, enrich and enlarge their work.
Knowledge artefacts alone are of limited use.
The context is crucial and so is conversation between creators and users of the artefact. If this happens is heavily depending on the way you embed IT in a corporate culture. A good knowledge exchange network collects artefacts AND connects people. This happens in my own work. Being connected is as important as to collect.