There’s always External Interface method. Some good tutorials on this out there too.
So far I found 1 Flashcoders post about a bug in IE7 that doesn’t allow the use of this technique.
People seem to be complaining about unwanted popup windows with this method. It seems to work fine for me in the browser, both locally and off a server. Popup windows only show up with Test Movie, which, while annoying, will not be an issue with clients.
Google’s AS3 component / SWC library
SWFaddress for Google Analytics tracking
There’s a way to use SWFaddress 2.0 together with ga.js to track page views in Flash sites.
There’re a few posts from 2007 that utilize the global function sendToURL().
Oh, I hope not…