Did you know you can post a Picture Trail photo show as a Google Gadget? Simply create your slideshow and then select “get code”. Keep toggling “more” until you get the option for iGoogle. Just click on the appropriate button that will then allow you to add your photo show to your iGoogle account; you should be logged into iGoogle when you do this.
Here is a link of an example: http://www.google.com/ig/v2landing
Happy Picture Trailing and iGoogling!