Google keyhaviour was written to produce dynamic content to aid in SEO or Google AdWords 'landing page' campaigns. Google keyhaviour does the following:
ELMS has expanded into a suite of distributions to become ELMSLN in Drupal 7+. Check out the ELMSLN community site for all information about the project.
This module was meant as a proof of concept and has been abandoned. Drupal 7 has vertical tabs out of the box (huzzah!), while the Vertical Tabs module provides vertical tabs for Drupal 6.