Take a look at this. Instead of a collection of dry guidelines sitting in a library or database, what the team at OpenClinical are doing is putting together a toolkit to convert such guidance into machine-readable decision support routines, which are then stored in an open access library called Repertoire. Openclinical.org has been going for some time and provides a wealth of material relating to knowledge management in healthcare.
Medicine is a field that has been very keen to exploit the use of evidence to improve decisions for many years. Many other fields can also benefit from a more rigorous approach to the use of evidence, and I hope to discover more active work in other areas. Let me know if you come across any,