Training_content is a project mainly written in PHP and JAVASCRIPT, it's free.
Demonstrates how to programmatically create Quicktabs that use AJAX to pull up blocks of content from an arbitrary vocabulary
This module, developed for TechMission's UrbanMinistry.org by Evan Donovan, for use within the Find Your Calling Facebook application is clearly a proof of concept, and would have to be heavily adapted either to be used on your own site, or else to be made generic.
Still, it is being released as a demonstration of how Quicktabs and some hook_block() trickery can be used to load content dynamically on your site.
The module's code is licensed under the GPL.