You can publish them online, off-line or sell them to a person else.
If you are reading this, it ought to mean that an individual might be at least marginally interested in having a greener, healthier planet to live to. A "backlink" is a link on someone else's site pointing back to yours. https://Www.digitaljournal.com/pr/news/press-advantage/contractors-state-license-center-is-offering-classes-for-contractors-license-in-los-angeles