Donate to the Mission

I'm a one man band running this site, and it take a decent amount of time and money to keep going.

If you believe in the Roppers mission and want to support, I am able to accept donations through Gumroad to go towards funding the site. Every dollar counts and goes towards making this place better.

Sponsor the Site

I am very interested in finding corporate sponsorship so that we can continue to provide high quality training for free. I am open to whatever would help your organization; from banners on the site or in the course, adding content or videos, to basically anything else.

Email me at for more information.

Teach this Content

To your students!

I want you to teach your students this material! I'm working on the teacher's guides right now, but teach this material to your classroom, your club, your friends, whoever. This is an excellent curriculum and I am happy to provide support to anyone who uses this. Email me at if you are interested in this.

All material on this site is licensed under a Creative Commons Attribution Non-Commercial ShareAlike license

The best way to pull this content is from the Gitbook located at