Tom Barrett from EDTE.CH created a fun google presentation called
Since I opened this in my google docs, it has continued to grow. That is the awesome benefit of collaboration online.... allowing other users to add their ideas to the growing presentation.
When you have time, check it out, look through the slides, or even add to it! And while you are at it, visit his blog and check out the other Interesting Ways to page to check out other online ideas!