As an exercise in venting with the small hope that one of these sites actually responds after I publish this list, here's a list of places where my work is regularly plagiarized.
Cloud Computin'
I've been trying for more than a year to get them to stop stealing my work. They haven't. Their hosting service is Name Cheap. Name Cheap appears to not care about DMCA takedown notices because their only replies are "we received your complaint and we're investigating." Name Cheap never does anything to comply with the takedown notice after that.
https://www.cloudcomputin.com/2021/03/free-technology-for-teachers-copyright-creative-commons-for-k-12-educators/
CUFEED
https://www.cufeed.com/2021/03/16/free-technology-for-teachers-webinar-recording/
Newsmagazine.online
https://newsmagazine.online/index.php/2021/03/17/webinar-recording-copyright-creative-commons-for-k-12-educators/
Daily Advent
https://www.dailyadvent.com/news/e833fa2d08a4db2569b24d7d52daca1f-Webinar-Recording--Copyright--Creative-Commons-for-K12-Educators
Great Plains Computers & Networks
http://www.gpcn.net/news---alerts.html
Gaming Post
https://gamingpost.com/2021/03/16/webinar-recording-copyright-creative-commons-for-k-12-educators-8/
DailyDose.pk
https://dailydose.pk/copyright-creative-commons-for-k-12-educators-free-webinar-on-monday
TodayHeadline
https://todayheadline.co/free-technology-for-teachers-webinar-recording/