If you are a teacher, you are welcome to use this site in your teaching. This applies not only to college-level teachers, but to public school teachers, private school teachers, and home school teachers. It specifically does not apply to vendors of resources for home schoolers, though. Or to any other vendor, for that matter. I do not want my site to help others make money. This site is for education, not profit.
If you are a teacher, you are welcome to contact me with questions, comments, or general discussion. My email is email@example.com.