There are two more columns by me on bMighty.com.

Managing Relationships With End Users
This was based on a previous blog entry with some more details and some things more fleshed out.

3 Ways to Treat IT as a Commodity
I wrote an adaptation (read less academic) of my discussion of Carr's original article for the site. I really do think it's an important distinction for an organization to make. You cannot just decide one day that IT is going to play a strategic role in a company's products and services.