Here are various links related to using Keynote presented at one of your user group meetings that others may find helpful. They aren't listed in any particular order, feel free to add to this list by posting a comment.

Apple Keynote Links
General Keynote Page
Keynote Keyboard Shortcuts
Keynote Hot Tips
What's new in Keynote v3

Third Party Theme and General Info Sites
Keynote User
Keynote Pro
Keynote HQ
Keynote Theme Park
JumSoft Keynote Themes

Misc. Links
Filemaker Advisor: build Keynote Pres from FMPro
Speech Improvement Co: Talking about Talking demos and examples
Speech Improvement Site: bio for Ethan Becker see related link here for one of his demo movies