Like mentioned you may use the material from this website free of charge if you
a) wish to use the material for private purposes; not for professional purpose and
b) your website doesn't have any illegal, rassistic or pornographic material and
c) you put a link back to my website.
Further information, also regarding professional use of the materierl can be found in the terms of use
Following you find various possibilites for a back link. Please copy the code and place it anywhere in your website.
Code:
