Richard Byrne's explanation. Sometimes I include his links instead of direct to the site because he gives explanations and suggestions for use. Some of these could be used for Breakout clues
I heard many great things about the Wakelet "conference" in June, 2020. Here Joyce does a great job of sharing the resources, that went way beyond Waklelet
List of episodes from School Librarians United. It makes a nice list of duties and experiences a teacher librarian might have (in addition to being able to listen to the episodes!)