There are some advantages to keeping it separate. I'm constantly updating the material as I come across new things. That's hard to do in a corporate environment. I concentrate on making it as easy to understand as possible instead of making it fit the corporate image (which is also important).
The bottom line is, the more forms of information the better. I think you said once that you were having trouble with a concept, but once you got it, you turned it into a tutorial. You were uniquely qualified at that point of time to bridge the gap of not getting it and just got it.
It's not us against them, it's what the best way to get our sites done. We can't be effective at what we do if we're all fighting amongst ourselves. The more we cooperate, the more we all benefit.