ExtraWatch is available for:
One of the most popular CMS. This was the first CMS the ExtraWatch was available for. Formerly it was known as JoomlaWatch. You can find it on: Joomla Extension Directory
The most used blogging CMS. This was the next challenge and required a complete refactoring. You can find it on: Wordpress Plugin Directory
Listing in drupal extension directory is pending
First e-commerce shop solution for which is ExtraWatch available too. Check it on Magento Connect
Next e-commerce software. Pending approval.