Some authors may ask for donation for their free listings. It is up to you to donate for an extension, template, manual, etc, you think it helped you and you wish to give back to the original author something in advanced. By donating for useful extensions, templates, etc, you support these developers and help them create even more and better extensions for Elxis CMS. These donations goes to the listings owners not to Elxis Team. The minimum donation amount is 5 euro and the transactions are processed at PayPal web site.