Go and see this picture which is one of the result of the study

http://www.backbonemedia.com/blogsurvey/9-corporate-blogging-cult-divide-diagram.htm

you can also download the pdf full study from

Backbone Media, Inc at http://www.backbonemedia.com.

Worth reading it

here is a copy for my own convinience

There is a good reference there:

http://www.blogwriteforceos.com/blogwrite/fortune_500_blogs/. Debbie Weil  has made a great job referencing who is doing what. She is writing a book about corporate blogging: http://blogwrite.blogs.com/book/

I have discovered HP blog usage through this. HP Blogs are there:

http://h71028.www7.hp.com/enterprise/cache/104417-0-0-225-121.aspx

Steve Wilson,  Senior Director of Global Web Communications at McDonald’s Corporation where he leads a team of people focused on delivering the various electronic communications platforms for McDonald’s around the world, tells there http://swaynewilson.com/wordpress/?p=22 what he is using in his company.

He tells: "For corporate blogging, check out the folks at iUpload, located in Burlington, Canada."

Seems that there is a project going on at Alcatel. You can see http://tubbydev.typepad.com/entreprise_et_blog/2005/08/movabletype_che.html.

No much details, as it is intranet based and private. But they say it's used for project teams and intranet publishing.

We should do some benchmarking there.