Informal Learning comes from ... whom?
Where do you fall?
The 90:9:1 rule suggests that only one in a hundred will start up a blog, create a new thread on a forum or put a video on YouTube. We're not going to see people do things like this at work unless they are seriously incentivized.
On the other hand, nine in every hundred will keep the conversation going and contribute in some way with a comment or refinement. That is more realistically where we should expect to see user-generated content emerging in the workplace - as thousands of short contributions to hundreds of conversations. With powerful search facilities on a corporate intranet, these can provide the answers to the everyday questions of the remaining 90%.
Excerpted from Clive on Learning blog
http://tinyurl.com/cc9kwhn