Mike Chambers whipped up an API for AS3 reference on Google App Engine yesterday. The API allows you to send a class name or fragment of a class name a get the links to the livedocs pages for any matches. Combine this with Ubiquity and you have a super simple way to get to livedocs for any AS3 class. To install Ubiquity, you can grab the xpi from here. To add the command, go to this page and just click the subscribe button in the top right.