AppleScript is an easy way to automate just about anything on your Mac -- and that includes Apple's own productivity suite, iWork. iWork Automation is a site that shows you how to make the most of that AppleScript support.
iWork Automation details all the new AppleScript dictionaries in the new versions of the apps, and then walks you through what you can do with them. From there, you can grab the AppleScript right from the site and start using it right away.
For example, here's one that shows you how to create and email out encrypted PDF files and one that exports Pages files in multiple formats. If you'd like to get a little more functionality of Apple's productivity suite, iWork Automation is a good place to start.