Look at this example I've experienced:
- Grid GK5 module product is linked from front page here http://www.gavick.com/metro-grid-joomla-module.html
The only link there is to downloads.
- Then a video featuring this was found here http://demo.gavick.com/joomla25/msocial/index.php/typography/template-features/grid-gk5-configuration-ii
- while documentation is here http://www.gavick.com/documentation/joomla-extensions/extensions-for-joomla-1-6/grid-gk5-module/
- and there is not category found for this product in forum
.......Or is it deliberate so we google more for Gavick products