Help Request: Looking for Examples of Blogs Used for Enterprise Learning/Training/Leadership Development

I have a deliverable due in the short term (read: I'm in a hurry here) and I need to find as many examples/papers/posts/presentations, etc. of:

1. Blogs being used for training and leadership development inside companies.

2. Blogs being adopted used successfully by Fortune 500 companies.

If you know of anything that might be useful, please do leave a comment. Thanks in advance.