There are many licensing possibilities for the material on this website. They range from copyleft to copyright, from GPL to Creative Commons. Some licenses allow commercial use, while some others explicitly forbid this, some allow you to tinker with the contents while others expect something in return. All these license models co-exist, but are incompatible with eacht other. To be hounest, I'm rather fed up with this. While it could be in the best interest of the individual to lock things down, the best for the collective is to share knowledge. So sharing is what I will do. I sincerely hope the contents of this website are of some use to you, either as a good read or as inspiraton for a project of your own, and I can't be botherd with commercial use.
Everything on this website is licensed CC0. This means there is no copyright. The person who associated a work with this deed has dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. For more information on the license see: Creative Commons.
Exceptions to this should be obvious. Examples are material from other websites, such as embedded videos from Youtube or images with a link to the original image source. I will do my best to clearly indicate other exceptions, but in case of doubt please apply common sense.