Templates, Instructions, video tutorials, and samples of PowerPoint games. (This is the teal page.)
Briefly explains how to create triggers from one item in a ppt to another. 3 Min 45 sec.
Detailed tutorial for making a Jeopardy powerpoint. 9:23.
Vicki Blackwell's Internet Guide for Educators - includes templates, design templates, presentations, etc. Not just games.
Templates and links to other sites with even more templates. This is the pink page.
Great collection of "gee-whiz" stuff you can add to a PowerPoint - how to color clip art, animate, etc.
This site has templates that you can use to make games, and it also encourages teachers by example to have their students create games as well. Lots of good resources.