Developing Effective Slide Shows (A Link)

I'm certainly somebody who believes that lessons must be engaging and interactive in order for students to gain as much as possible from them. However, at times it's worthwhile for teachers to present slide shows and power point presentations. The other day, the Fischbowl had a fantastic powerpoint that I truly enjoyed about the nature of the Twenty First Century, entitled Did You Know. (I found it through David Warlick.) Today, I found an article on how to make slide shows, entitled "Developing Effective Slide Shows." The article is written by Bruce Byfield. It's at a site that I've never heard of before, IT Manager's Journal.
Check it out.