I created a website long ago that had a different name, so I could always be of service to my students, past and present, with my language materials and availability of personal access.
Later, I also tried to earn income by providing other services like translations, eBike conversions, handy man projects, etc. and advertising it in a website of my own. So I made I-help-u-pay-dot-com and uploaded the PF Vitamins into its own separate blog there.
Although I wouldn’t reject donations to offset the cost of running the site, while I have never received any, everyone is welcome to access my site and use the material therein free of charge.