One thing that will help caching is if I submit with a random/timestamp parameter. However, all the components will still be cached.

I can’t think of any magic way to time the components…I’d either need to parse the page on the server or allow for a Richer Plugin, where the user gets extra info if they install a plugin.

Sorry to hear about the book issue; if you could send me an email (michael@mahemoff.com) mentioning the URL for this article, I’ll pass it on to an O’Reilly person.