Have a casual idea that I want to put up here for your consumption. If you believe you’re really brave enough to consume such impractical-sounding ideas, lap it up and let me know what you think.
Assume we are talking about an organization where everyone has at least a small white board for themselves. What if we introduce a practice – let’s call it “tell me what you learned” - wherein employees are asked to write down 2-3 things that they learned that particular week, on every Friday morning. The writing has to be big, bold and visible. (A marker of a particular colour could be recommended for this purpose.) And there’s no compulsion to participate. If the employee has really something significant that he/she learned and really wants to share it, he/she does so. For example, if someone learns about how to identify areas for Best Practices Sharing, she could write this on her board – Best Practices-Identification of Areas. People, who find the topic interesting and want to learn more about it, can just walk in and ask for a few minutes and discuss the topic with the ‘sharer’.
In a given block/building, the person who seems to be sharing good stuff every Friday would be quite evident. Such people from each block/building could get some additional recognition and be referred to as “This month’s learning guru” on a common office notice board. This may or may not work based on the organizational culture…but without such practices, informal learning would be left to networking events and chance.