The content on this website is published under a Creative Commons 4.0 BY-NC-ND license, if nothing else is mentioned (some pictures are under copyright). This means that you can share the content for non-commersial purposes as long as you don't modify it and remember to mention that I created it and it goes under a Creative Commons 4.0 BY-NC-ND license.
Here is how the the license is described in detail at www.creativecommons.org:
All CC licenses require that others who use your work in any way must give you credit the way you request, but not in a way that suggests you endorse them or their use. If they want to use your work without giving you credit or for endorsement purposes, they must get your permission first.
You let others copy, distribute, display, perform, and (unless you have chosen NoDerivatives) modify and use your work for any purpose other than commercially unless they get your permission first.
You let others copy, distribute, display and perform only original copies of your work. If they want to modify your work, they must get your permission first.