this shipping module allows to set free shipping for orders with products from certain categories only.
Legend: 
Download
Report
1. Google Checkout compatibility
2. Added option to deduct weight for free shipping items in a mixed cart with both free shipping and non-free shipping items.
Thanks to kit for a great contribution.
Here added module control value allowing to restrict free shipping to orders with products only from this categories mentioned, or this products from any categories (including mentioned in settings). NOTE! Prev versions allowed free shipping to orders with any products if there are ones from categories set for module. To avoid mails with questions explanation about settings ioncluded. Full package.
Bug with not saving categories list fixed ( step in installation added - changes to modules.php). Full package.
made a multiselect menu instead of entering category id's. full package.
this shipping module allows to set free shipping for orders with products from certain categories only.
Add file to this package