Introduction to PowerPoint 
PowerPoint tutorial http://www.education-world.com/a_tech/tutorials/ew_ppt.htm
In and Out of the Classroom http://www.microsoft.com/Education/?ID=PPT97Tutorial
Creating Online Presentations (download) http://www.microsoft.com/Education/?ID=PptTutorial

PowerPoint in the Classroom (use with students) http://www.actden.com/pp/
Teacher PD.com http://aitt.acadiau.ca/nstpd/
In the Classroom (project ideas/presentations to use in classroom) http://www.electricteacher.com/powerpoint.htm
Creating Classroom Presentations (article Creating Classroom Presentations) http://www.education-world.com/a_tech/tech013.shtml
What’s All the Hype? http://www.teach-nology.com/tutorials/powerpoint/
Using PowerPoint in the Classroom http://www.west.asu.edu/achristie/powerpoint/  

PowerPoint Templates 
Free Templates http://www.websiteestates.com/ppoint.html 
Templates http://www.graphicsland.com/powerpoint-templates.htm
About.com Templates http://desktoppub.about.com/cs/templatesppoint/

 
PowerPoint Presentations to Use in the Classroom (Teacher Helpers-use with students)  

PowerPoint Jeopardy

http://www.esu5.org/techteacher/powerpoint.htm
http://www.nku.edu/~scienceed/K12students.htm

PowerPoint Scoring Rubrics
Build Your Own Rubric Rubistar http://rubistar.4teachers.org/index.shtml
A+ Rubric http://www.uni.edu/profdev/rubrics/pptrubric.html